Driving is fun. There's nothing fun about public transport, or at least I prefer to sit in a warm car, on my own, going where I want to go, when I want to go there, rather than have to sit on a windy railway station, getting into an overcrowded train and go where it wants to go, and then inevitably leaving myself with a 20 minute walk when I get off anyway. Yes it's expensive, but it's so worth it. I wouldn't enjoy my life anywhere near as much as if I relied on public transport.
I could walk outside and drive up to Scotland right now if I wanted to. Don't have to plan a thing.