I played with story progression and aging off for a long time. High will was still on the highest setting. The townies did not age and I did not notice any new babies being born. Everyone stayed the same age and in the same households as I expected. Now that I have turned both aging and story progression back on, the babies aged to toddlers almost instantly as well as the rest of the townies. I'm not sure if this had anything to do with the fact that I played the game so long with those two options off, but everyone in town is aging and moving around very quickly. Sims are moving out of town and new ones are moving in rapidly as well. Every day when I turn the game on, I have noticed that most of the Sims in town have moved into different households and no matter how often I go into Edit Town mode and place everyone where I want them to be and save the game, they still move. I'm sure it is because of free will being set on high, but it does get annoying when I spend so much of my time fixing their homes up for the family living in it at the time. I have even noticed that my oldest families that I have had in my game forever move out of their houses and don't even show up in a new home. I have searched for them in every household and they are not anywhere to be found. But when I go back into live mode and look for them under relationships, they are still there and I can call them and meet up with them in town somewhere. I stayed with them for a full 24 hour period to see if they would leave to go home, and they stayed wherever I met with them. They were homeless. It did not make any sense to me since I have empty houses available, and they had money to live on, but they moved out of their homes and live invisibly somewhere until I call them to meet up with them. I have even followed my mail person before and watched her stop in front of a house and run inside. I actually watched her enter the house and when I had my Sim go up to the door to visit she was not in there. I searched everywhere and she simply was not there. That seemed really strange to me. This game is both fascinating and mysterious at the same time. I wish I could offer fresh ideas or answers, but I thought it was worth sharing my game experience if it helps anyone.