top reasons TO bike-commute.
it's not a car!
if your co-workers honestly think that way they wouldn't be able to pull it off. i can't tell you how many (generally physically fit) people have gone on rants to me about how they wouldn't be able to commute by bike, and when they try it they can't. car-free is like most other things in life: you have to approach it with a positive attitude.
i'm sure if those of us who commute by bike (and those who commute much more hardcore by bike) would fail if we looked at everything like that: "ah, i gotta get up thirty minutes early and put on an extra jacket. then i have to stay on the right side of the road the whole time and pedal uphill twice! then i have to lock it up, and what if i get a flat?"
but seriously, we are focking crazy for doing this schit..