I’m an old woman now, and I use cabs when my husband is away and I have something I have to do. I don’t want to be driven around by someone who does it part-time, perhaps in between other jobs, and is vetted as poorly as some of these drivers are.
I’ve known people who have driven for these services. Some of them I’d trust with my life; some, I’d never get into a car with.
A lot of people who drive drive a lot because they do it to go to work or buy food.