I'm too old to care about how I look. But I'm right there, dude, when it comes to surprising people and shattering their pathetic little myths about "those anemic, wimpy veg*ns". As a cyclist I actually look pretty scrawny in street clothes, and have been skinny and short all my adult life. But that makes it all the more fun to astonish people by opening a peanut butter jar that has foiled them, or throwing 50 lb of cat litter over my shoulder, or hefting a 45-lb tandem onto a car roof rack without blinking.
So let 'em have their stereotypes; our actions will shatter them more decisively than any words.
Anyway, welcome vb; I'd offer to ride with you, but I'm, like, two time zones away. Ride on; don't let the smog get ya!