I (26M) recently bought my first car after saving up for several years. It’s nothing fancy but I'm proud of it. My brother (23M) wants to borrow it for a week-long road trip with his friends. I said no because it's brand new and I'm worried about wear and tear, plus potential accidents.

He called me selfish and said I was being overly paranoid. He’s been ignoring me since our conversation. Our parents think I should let him use the car to maintain peace, but I feel like it’s reasonable to want to protect something I worked hard for.

So, AITA for not lending out my new car?