Nice start! I've got a couple comments/question.
Pathfinding seems like it could use some work. If characters are too close to each other at the end of the day, they just kind of logjam and don't budge.
Does working out with the weight set change dynamic appearance? The treadmill definitely increases model height, but I got characters up to >50 strength and their models seemed to remain the same.
If you accidentally move a vending machine while a character is using it, they freeze for the rest of the game session.