Lot’s of reasons, the list is quite long, you don’t really have to read that all x) :

*- cars maintenance is annoying

*- parking is annoying

*- on street parking and big parking lots are ugly and make places worse to live in

*-cars are extremely dangerous

*-cars are too loud

*-cars are bad for the environment

*-cars are an inefficient way to get around in most cases

*-there is too much car infrastructure

*-car infrastructure is really expensive, a lot of that tax money would be of better use elsewhere

*-I’d rather support public transport and the implementation of good bicycle and walking infrastructure

*-walking and riding a bike is healthy and can be really pleasant

*-I can read stuff while using public transport (like lemmy posts)

*-driving a car in big cities is scary and stressful

*-trains are cool

*-screw the car industry and their lobbying

*- in the few cases I do want to use a car, I can easily rent one

These are just the reasons from the top of my head, there are probably more.