Here is a CONFIG file set up to make the Sims always sit. Enjoy

edit: file removed, get the final version of the hack

As long as you have the Pets EP or a higher one, it should work. You will see the toddlers' names in the "sim picker" screen when you call a taxi or try to drive your own car. If you are sure that you extracted both the mod and the addon to your Downloads location and it is still not working, please send me a Private Message and I'll see how I can help further.

It might even have been an issue with InTeen if you have that, but there are fixes that I just made for it.

Yes you do edit in SimPE, this file df_baby_toddler_food_and_feeding_fixes_CONFIG.package

you can even run SimPE like this:  SimPe.exe -enable localmode
If you add that to end of the shortcut " -enable localmode" it will only take around 90megs of memory and start up super fast.  Just edit that first "BCON" file.

Change the option 0x1 "move style (0 = few tiles away, 1 = sit, 2 = either)".
I have it set to number 2 by default, just change it to 1 and then the Sim will alway sit to feed the baby.

I've never tried that breastfeeding mod, but I think Squinge will need to add a "sit" feature to it himself. Maybe you can ask on his request forum. You can even point him to this thread and tell him he has my permission to "steal" my code to make mom's sit to breastfeed.

  Eat at neighbor's apartment

* Requires     : Apartment Life
* Compatibility: The Sims 2, University, Nightlife, Open For Business, Pets, Seasons, Bon Voyage, Store Edition, FreeTime, Apartment Life, Mansion & Garden Stuff, all Stuff Packs
* Modifications: Semi-Global (affects all food dishes)
* Hack Version#: 1.1

Update ( 05/11/2009 )
~~~~~~
1.1
- Older 1.0 version allows the Sim to leave the neighbor's apartment if there are no usable dining tables to eat at.  The Sim would try to find a place to sit in their own apartment.  Failing that, the Sim would look anywhere else on the lot to sit.  This new version will allow the Sim to sit anywhere in the current apartment, such as on the sofa or a living chair.  A dining table is still the preferred place to sit though.

Quick Info
~~~~~~~~~~
A Sim will eat in the apartment they are currently in or visiting, instead of taking the food all the way back to their own apartment to eat in solitude like a weirdo.

So now your Sims can enjoy a meal with a neighbor at that neighbor's apartment, instead of "stealing" a plate and running back home to eat it.  It works with following interactions: Serve a Meal, Grab a Plate, and Get Leftovers.

* Check out the readme.txt file for more information.

Change the option 0x1 "move style (0 = few tiles away, 1 = sit, 2 = either)".
Right now it is 2. You can change it to 1 and then they alway sit.

If you want to try it out, I have attached it. But this is not the final version and is missing documentation. It does work fine, but I still want to add a few things. here is a little info though:
Prevents Sims from magically getting a bottle to feed babies or toddlers when the refrigerator is empty. Allow a Sim to sit while feeding a bottle to a baby.  Sims only do it if their comfort motive is at or below 50%.  At above 50% comfort, they will instead feed the baby while standing, but first move away from the fridge after getting the bottle so that they don't block other Sims from using the fridge. (you can change that in the CONFIG file to make them always sit though if you want)

edit: the final version of this hack is now available from here  http://www.insimenator.org/index.php/topic,105637.0.html

It's at http://cep.modthesims2.com

That should be possible. But without a hack, even though those people still show up, doesn't it say "xx is at work, UNLIKE SOME PEOPLE I KNOW" and other messages like that? Or "xx doesn't have a phone".

It works fine in my game. I can place the huge aquarium and it looks great. I think it could be that you have a bad hack that is causing it or some other custom content. I would suggest removing all hacks and custom content as a test to see if it work. Or else try uninstalling Apartment Life and then reinstalling it. Maybe your game files are messed up and I think that aquarium was added by Apartment Life.

actually this is possible. I already made a mod to do that, but it only makes the Sim sit to feed the baby a bottle. The parent will never just sit with the baby in arms for the fun of it. It is not out for the public yet, but stay tuned!

actually, i'm pretty sure you need both the userstartup thing and a mod. because the different parts of the game code check different values to see if you have exceeded the maximum family members. Using only userstartup stuff alone, still seems to limit your maximum allowed in certain situations.

I don't have an account at Simbology's forum. But the readme file explains the problem. Twojeffs hack does reduce the number of controllers created.  But it still leaves extra controllers behind even for pets that are dead and it also does not get rid of the already existing bad controllers. My hack is also made in a different way than his, which is why it conflicts with Inteen.

  Pregnancy controller fix

* Requires     : Pets
* Compatibility: The Sims 2, University, Nightlife, Open For Business, Pets, Seasons, Bon Voyage, Store Edition, FreeTime, Apartment Life, Mansion & Garden Stuff, all Stuff Packs
* Modifications: Global (affects all lots)
* Hack Version#: 1.0

Quick Info
~~~~~~~~~~
This is a replacement for "Pet Pregnancy Fix" by twojeffs, which is not 100% working.

* If you have InTeenimater installed, you must download the special version of the hack called df_pregnancy_controller_fix_INTEEN_REQ.rar

This fix removes unused and excess Pregnancy Controllers from your lot.  All they do is bloat your saved game files and slightly slow down your game.

The hack works quietly and automatically, needing no user intervention.

Effects
~~~~~~~
A Pregnancy Controller will be referred to by the abbreviation PC below.

When a human Sim becomes pregnant or when a Pet Sim is ready to give birth, a PC is created to handle the pregnancy and birthing process.  After a human gives birth, her PC is removed from the lot because it is no longer needed.  But a Pet's PC will not be removed after that Pet gives birth.  It will remain on the lot eternally, even after that Pet is dead and buried.

Also, a brand new PC is created each time the same Pet gives birth.  So consider your Pet giving birth today, and then again 2 years from now, and yet again 4 years from now.  This will create 3 permanent (and completely unused) PCs that infect your lot until the end of time.  Just imagine how many excess PCs are on your legacy lots that had many generations of Pets giving birth.  Well how about 30, 50, 100, or even 150+?

So this hack will remove a Pet's PC after it gives birth, just like the game already does for human Sims.  It will also remove any and all old (unused) Pet PCs that are still infesting your lot from when before my hack existed.

* Check out the readme.txt file for more information.

Version 1.1 is now available. Previous version (downloaded only 253 times - guess you all don't like pets) had an issue the prevented wolves and skunks from showing up.

And on 4/12/2009, a newer version 1.2 is out to fix a tiny issue.

Version 1.1 is now available.  Previous version (downloaded 847 times) could not detect M&G Stuff Pack, unless Apartment Life was also installed along with it.