You'd prefer that I answer "because gig economy companies provide unmatched flexibility and freedom to their employees^H^H^H^H^H^H^H^H^Hcontractors", right? I'm not really here to play that game, so how's this?
- They may not work in an area where In-n-Out exists or Starbucks is hiring. Note: this doesn't mean that the other available low/no skill work pays less than Uber or other "gig economy" jobs.
- They may not realize that retail work pays more than Uber or they may believe Uber's exaggerated wage claims while not realizing that Uber would continue to take a larger and larger share of the driver's earnings
- They may have fallen prey to Uber's predatory financing and bought a vehicle expressly to drive for Uber
- They may believe that working in "gig economy" serfdom makes financial sense. I've a friend like that. They "work" for Instacart, but instead of driving their own vehicle (which they're upside down on) they use Uber to get to the grocery store, then another Uber to the person's house, and then another Uber home. Trust me, it's costing them money to do this but in their head it makes sense
- They could be Travis Kalanick and drive under the Boober[1] model — basically driving as a means of meeting sexual conquests.
- They could believe that retail work is beneath them
- Back before Uber was forced to institute background checks another option is that the driver failed a background check elsewhere or was otherwise unemployable in retail.
1: https://qz.com/1011300/uber-ceo-travis-kalanick-pissed-peopl...