Agreed, all of that matters. Also, another big difference from Uber is that the vast majority of adults can drive, so their pool of potential drivers is large. Barbering is a niche skill and in many areas is regulated. I can't just download an app and start working unless I'm already a trained and licensed barber. Then I'd need to own or rent the van outfitted with the chair and other equipment. The scaling model is vastly more constrained than Uber.