I'm not going to give a guy a ride
Why wont you give him a ride?
He looks like a dick and we will never be friends.
You shouldn't leave someone stranded if they need a ride. If you are capable of providing a ride for someone then it's polite to help them out.
I don't see why I have to give him a ride.
You can't leave someone stranded with no ride. Even if you don't like him, you should be kind.