Do you really need to drive?

I don't drive but I live near a big city. I usually commute by train or bus- mostly by train. I find most places easily accessible by public transport. They are fairly punctual and I don't have to worry about busy traffic and road accidents. I can just enjoy the ride, read a book or do a bit of thinking while I commute. That's one of the advantages.

I haven't really done a serious cost comparison between owning a car and using public transport. I've always thought using a public transport comes out to be cheaper than owning a car and is a lot safer and you get to do other things while you commute. Paying the insurance and regular maintenance costs add to your overall expenditure.

If you live closer to work, friends and family, maybe you don't really need a car. However if you have to travel longer distance regularly, then this may not be a right option for you. Personally, I can still go on without a car. Any thoughts?