Hmmm... my friends are pretty supportive, especially when it comes to making sure I've got safety gear Most of my friends are the ones I met in the bike club, though.
Work is at least tolerant- though da boss lady emphasized that she did not want to see my bicycle in the office (it's a big computer lab) once students were coming (not that I'd have parked it there then anyway). It is sort of a "well, we want to encourage diversity" thing, though... it's not *normal* behavior. There aren't any kind of facilities - a pretty basic bike rack out in the weather... and the gym showers ... I don't know, maybe it's me but I have never gotten hot water from them so I gave up.
There are lots of fellow cycling nuts around here... and in general, the citizens like the idea of people riding bikes instead of cars, even if they don't "get it." It's sort of like being a monk or yoga guru or something - they don't think they could do it, but they admire it . If only I could convince them that it's a very feasible conversion... and I try, one bike trip at a time...