My parents never locked the doors growing up, but I still lock the door of my own house. My parents never gave me a key when I was a kid, so it was probably lef

My parents never locked the doors growing up, but I still lock the door of my own house. My parents never gave me a key when I was a kid, so it was probably left unlocked so I could always get back in. I'm not sure why they didn't just make sure we all had a key so they could keep it locked. That's what my roommates and I do at our place now and it works fine.