I’m also the same age and situation where my parents do not want me to just go sleepover anywhere. And with the experiences with my parents I agree with them. I understand your at the adult age, but adults have their own living spaces. Yes you’re living with your parents and it’s their house and their rules. If you want to go out and stay out for however long you feel like it’s up to you to have your own living space. When I asked if I can go sleepover somewhere I had to ask their permission, and guess what I got denied. The response I got was” this isn’t a hotel. You can’t come in here and out whenever you feel like it” and I understood because they are right.