I like to watch them and leave them to make their own choices. I'll step in and help once in awhile, like if I really need them to get a skill to get promoted I'll make sure that they do it. If they decide to electrocute themselves though, that's on them. If there's a story I'm playing out in my head, I'll step in for that too, but I like households with more than one sim and I find the autonomy useful when I want to pay attention to one and not the others.