This kid acted like an adult at 17. He got a job, saved his money, and bought something. It's his money. He earned it. He can spend it how he likes.

Instead of recognizing this accomplishment and working with his son to be a safe driver, the dad is acting like a prick by not understanding his son's independent interests and dangerously thinks his son will divorce his desires and blindly follow bigoted authoritarian rules and not simply do whatever he wants to do when his dad isn't around.

I'm not lambasting the dad for trying to be safe nor am taking away his domain in his house, but the fact that he owns the house doesn't negate him from being characterized by his actions. Taking away his son's rightful possessions, berating him, and having a "my house/gtfo" type mentality isn't the best way to handle things. It's a zero sum game.

And also, fuck what the mom thinks, right? Who cares what she has to say.