Stay in someone else’s house, and you have to live by someone else’s rules.
Being a guest, even when you are one of the more permanent kind, means that it is important to respect the boundaries of the person whose home it is. It may not be the way that you would choose to live if you had your own place, but that is the tradeoff of being the recipient of this kind of hospitality. If those restrictions are too tough for you to live with, it is time to find another place to stay.