Out of nearly thirty people here, 4 are in their 20's.
At 27, I'm the second youngest person here.

So when I come in on my bike, they think "Must be good to be young" or "Oh, that crazy whippersnapper biking 10 miles to work." They don't see it as something they're capable of doing. Everyone has the impression that I'm some superior athlete or something.

But off the top of my head, I can't think of anyone who really lives close enough and has a family situation that makes biking practical. Either they're too far, or have to pick up the kids on the way home, etc...

So no, my commuting has no effect on anyone.