I'm terrified of flying. I will fly but only if there is absolutely no other feasible way of getting somewhere.
I've just booked my transport for my summer holiday - 36 hours each way on long distance coaches for £230 instead of 2 hours each way on a plane for £160.
A couple of years ago I took 3 trains over about 48 hours to get to Russia for about £300 (I think - can't remember). I think flights took 4 hours though I think they were a similar price that time, not sure.
Other than fear (which isn't that common?), I can't think why anyone would choose a transport method that is both longer AND more expensive, except for environmental reasons. But these buses and trains are pretty popular and book up. I know some will only do one leg but the buses in particular are often straight through and the huge distance tickets are easy to source.
So I'm wondering if anyone would do this purely to lower their carbon footprint? Is it a reasonable expectation on people for the environment?