Why don’t parents respect their child’s privacy but the child has to respect theirs? Parents are RUDE [I Parenting]

Okay so I’m 17 and my Dad is getting on my nerves! I’m not allowed to lock my door, no boyfriends until I’m mature enough or 30 (lol), he doesn’t respect my privacy and he is always in my business. I was like, “Dad you taught me about broundries, so why is your nose in my business?”
My dad’s face was shocked and then he said, “That’s different, you’re my child and what goes on in your life is my life too. There is NO privacy in this house accept when you change or whatever but when it comes to boys or people you let in your life, that’s my business so don’t be telling me about boundaries! Your mother and I made you, your business and my business and so basically, I am part of YOU. I brought you in this world, I can you out so THERE.“
That shut me up. Then I said, “You don’t respect my privacy at all. I would say hold on but you barge in always. That’s not nice.”
He said, “You’re right. I don’t. You’re a teenager. You have to EARN privacy. It’s my house so I can barge in if I want.”
Me: You get mad at me for barging in your room and tell me I have to respect your privacy but you are allowed to disrespect MINE?! How unfair!”
Dad: Of course life isn’t fair! Life isn’t fair! It’s my house! I get privacy, MY HOUSE!”

My dad is such a jerk and a savage. My grandma said, “You’re not your own thing until you’re 18.” 😳😳😳😳
Really grandma???