Yeah that is where the largest savings can come from. Never learnt to drive because of the costs involved with car ownership. Couldn't afford it then and now I would rather buy something else. Could go on 4 cruise holidays a year with the money saved just by not having a car.

Even the bus costs a fair bit compared to a bike, but still cheaper than owning a car. Sure, fuel to go to work might cost less than a bus ticket. But a bus ticket doesn't require me to buy a depreciating asset - well, other than enough clothes to not scare other passengers.