People who cycle to work

this is for know reason what so ever i was just curious

why do you cycle to work
ie because its fun, keep you fit, public transport basically mugs you, it quicker and so on

all of those, used ot skateboard for transpor tin sydney but london too big and roads are too shit. plus i got my first bike in london due to the bombs on the tube, one on the tube i used ot catch to work, bike arrived 2 weeks later, day of bombs on the buses, one of which was on my road the other near my old work...

fitness, fun and quicker yes...