Has Thomas Sowell talked to any panhandlers lately? I'd say the floor on minimum wage is at least $3/Hr if one can sit on a curb with cardboard and earn that much.
Extrapolate out of how often I see folks giving money out on my way home at the same intersection (around 1/4) times for a 2 minute wait. With what looks to be more than a dollar worth of sponsorship for the panhandlers habit