I currently live with my folks and I am 22. I must say that I really do not have any problems with my folks. They do not rummage around in my room or anything like that. I am normally not at home though. When I am home, I am normally in my room. Being rent free is kinda nice too, more jumps that way. I plan to move out soon, but until then, just living with the 'rents.
-Jeremy
Blue Skies,
Jeremy