Considering there is very little public transport here, you'd live a very limited life without one.
I bought my Yaris from a girl who had it as a first car and had used it to drive to college. I noted that she was only covering about 3,500 miles per annum from looking at the old test certificates. Considering how much an 18 year old pays for insurance, I couldn't help thinking it offered a very poor return for her money. In reality, she probably had no other choice unless she could find someone who could give her a lift as although she lives in a decent sized town, there is no public transport option for her to get to college and it's a very fast and busy road, not somewhere I'd like to cycle. Alternative quiet roads would be much slower and hillier. I can perfectly understand why a young person wouldn't want a car if they had other options.
I bought a flat within easy walking distance from town (although most of my neighbours still drive to the shop) and rarely ever use my car on weekdays but I still like to have it and do clock up reasonable mileage. I'm happy to drive long distances if there is something I want to do and I will drive somewhere on whim sometimes. I'm fortunate to live somewhere that isn't too crowded so out of town, I can have quiet roads. I've always liked cars, their engineering and their history, but unlike most car enthusiasts, my interest has always been the cheap and cheerful but interesting cars like Citreon 2CVs.