Except that at least some of the uber drivers that I've seen most definitely do this as a side job (ie they have another primary job that has a lot of off days

Except that at least some of the uber drivers that I've seen most definitely do this as a side job (ie they have another primary job that has a lot of off days/variable schedule and as a side job they Uber to make some extra money). If the proposed laws allow for this kind of use case then fine. Not to mention that almost all Uber drivers I've seen have both Uber and Lyft signs in their windows so obviously they work with both. That's a good thing, gives them more choices and helps keep those companies honest and even if you argue that in practice Uber/Lyft don't seem to provide drivers the benefits of such competition (they may be colluding) then I ask you, isn't the solution to that to promote more competition? So be very careful with enacting laws if you want to create real competition to help the drivers.