Okay, I located one of the older mods I think you're looking for to see if it works with Apartment Life. The
Visiting Children & Teens Stay Later sounded like what you described, but I want you to look and tell me if that is what you're looking for or wanting something different.
If that is what you're looking for, then one of us will check for compatibility and get back to you with further details. Otherwise, can you try to explain how you want the children and teens to stay up later?