I'm still confused why would people keep working for DoorDash? No other jobs around? Would they just be unemployed if DoorDash closed down? Is it that DoorDash

I'm still confused why would people keep working for DoorDash? No other jobs around? Would they just be unemployed if DoorDash closed down? Is it that DoorDash actually tricks people into working for them with hope of a higher wage which never comes? I'm against the practices they put in place, but am more leaning on better universal income, health, basic amenities, things like that. And I'd hope that if that was the case, it would also mean no one works for DoorDash making 2$ an hour, since that's less then your universal benefits would even give you. But I'm not sold on any one idea. So I'm asking to help refine my opinion. I feel I'm missing a piece of the picture here.