All work is not degrading. Underpaid work is degrading.

Hyperbole will just undercut valid arguments and convince people they don’t need to tune in

“Selling is legal. Fucking is legal. Why isn’t selling fucking legal?” - Carlin

I stand on the corner of the street where my customers can see me.

But in all seriousness, so long as they are doing it by choice and have not been forced into it by criminals or financial difficulties then it’s not a problem. If it’s controlled and safeguarded like any other employment then it’s entirely up to you of you take them up on what they are selling just like anything else.