I wonder if you could circumvent these issues by making it donation only, but show riders' donation history to drivers before they choose to accept a rider. The

I wonder if you could circumvent these issues by making it donation only, but show riders' donation history to drivers before they choose to accept a rider. The donation is "optional" but unless you want to be effectively blacklisted (by individual drivers, not Uber/Lyft) you should leave a donation. I'm sure the taxi lobby would figure out a way to shut that down as well, of course.