Townie challenge

Have you ever did a challenge where you take the 100 baby challenge rules(in the sense of you take the rules of how you can age the kid up)and replace 100 babies with every townie has to have at least one baby with your main sim. But if they give you twins/triplets I take only one kid from that batch and the rest are spares(I put the kid/kids with there townie parent)for if a the chosen kid gets taken away. and that has happened to me before oh and after I'm done with that family I move into their house. I not very far along in this challenge I've only done the bffs and the pancakes and I'm now moving onto the goths but it has been super fun for me because this different from how I usually play the game.if there is a challenge like this can you let me know so I can play by the rules-Sage