Here comes a story:
I bought my car at 16, just about to turn 17. The paint was horrible, clear coat failing, exterior was pretty bad. Interior was beautiful, that's what sold me. I just wanted to get it painted and sell it, and buy something else. I did a little bit of modding before that, like a K&N ar filter (added sooooo much power lol) and I did the civic fogs right before painting.
I got it painted, I was about to put it up for sale, and my dad stopped me. He told me to give it a while, so I did. The car grew on me, and I started modding it little by little. My parents weren't too happy with it, but they said as long as you can keep up with the insurance, maintenance, and gas then it's your money to spend on your car But then came the day I lowered it. My dad now liked the car, but my mom still isn't too fond of the modding. I then got my TL wheels, and my dad loves that car, still thinks I shouldn't be as low as I am. My mom still tells me everyday that I'm going to take my bumper off.
But I paid for everything, so they said it's fine with them. They still think it's a waste of money though.
But if your parents bought the car, and it's in their name, then they are the owners of the car. So they can make the decision