Why are parents so controlling?

I’m 34 yo and unfortunately still living at home. The cost of living is too expensive. I’m saving up to buy a house. I’ve been helping my parents around the house. I don’t mind. But my mother loves to control people and everything they do. It’s either her way or the highway. I’ve started going out again with a buddy of mine. We go to the movies once a week to get out. First thing out of my mother’s mouth “was don’t pick him up. Meet him there.” My car is registered and insured in my name. He asked if I can pick him up. I said yes. Since when we used to go to the bars years ago he would always drive. I told my mother I have been meeting him there. He called me and she heard me talking and found out I lied. She would make a big stink of it regardless if I told the truth or not. Lose lose situation. Now she’s pissed calling me the liar. She’s just too controlling.

Why are parents so controlling?
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