I recently moved out of my parents’ house. I still have a key but 99% of the time they know I’m coming and the door will be unlocked anyway, so I just let myself in. My parents have keys to my condo as well, but I only have two keys to the main door (it’s a converted school, so all of the condos are in the same building), so my mom has one and I have the other. My dad does have a key to my actual front door, though. My mom comes by occasionally to visit my cat (I took her with me when I moved), which I don’t mind, as my cat likes the company (I am a teacher and leave for school before 7 am and usually am home no earlier than 3 pm).