I've actually seen a lot of homeless people using bicycles. I personally think it's a great idea. I mean, it's got to suck enough to be homeless, at least this way they are relatively mobile and can cover a larger area to scavenge their way through daily life. There are even some community efforts here in Portland to help homeless people keep their bikes safe and working.

But back to the whole point of this thread... yeah. Lots of people tend to assume you're either poor or you've had your driver's license suspended and that's why you're "forced" to bike instead of drive.