Taking the keys away is not an option, my dad is very stubborn and drives at night when he can’t see too well and is now trying to figure out how to tape up the brake line. My sister is going to try and convince him not to, but my dad comes from a generation when you fix things yourself with some sweat and tape. I wasn’t sure if the whole brake lines needed to be replaced when a leak happens or if they can just fix the area of the leak.