I stayed with my parents right out of college for about a year. I didn't come home one night after a game/date. After that, it was just let them know if I planned to be out. I was working two jobs at the time. They had my stepdads mom staying with them for a while after a major ice storm. It was cramped and she was a *biting my tongue here*...
You're working, right?
I hear you about being treated or subjectively treated like a kid. My father looked at me one of the days that I spent at his place last winter and commented his surprise we all hadn't gone outside to enjoy the weather.

gawd...my sons and I had literally driven 1200 miles even filled up their gas tank. Jet lagged and exhausted I just shook my head. Here I am a divorced single mom with jetlag after a long journey and he's wondering why we were all lounging around??? That's being spoken to like a child, no doubt.
Is there a really good reason they push for you to remain living with them? My mom felt abandoned she once told me. But that was her issue not mine...