I've been running multiple families as well, but I just let them whatever they want to do (except for work, I sure praise them to earn money) and strangely, each family seems to have their own habbits. One family is crazy about birds and pool, another likes to watch tv, another family never watches tv except for the youngest boy (he sits in front of the tv all alone), another family is so well behaved; grown ups work all the time, teenagers study or do homework, kids play in the sandbox or with toys.