What does it have to do with Uber? A lot of drivers are doing that, and don't even get me started on taxi drivers in New York City, they just do whatever they want on a road.
If these are Uber drivers picking up/dropping off passengers, then it's Uber's problem, isn't it? Setting aside the contractor/employee dispute, these drivers are engaged in activity for which they'll get money from Uber, so it definitely is Uber's problem.
> A lot of drivers are doing that
Not in SF. I've lived here 10 years, and never saw this level of ineptitude. These days whenever I see a driver being an asshole, I immediately check to see if it's an uber driver; and 9/10 it is. I sometimes work in a cafe which is on a corner; and I've lost count of the number of times I've seen Uber drivers doing a U-turn at the stop sign, confusing other traffic.
> don't even get me started on taxi drivers in New York City
Driving for Uber (or a rival) hugely increases the likelihood that you'll want to change your destination suddenly eg when you get a job. That makes it more likely you'll do something dangerous to get somewhere more quickly - your review depends on it, and consequently so do your potential future earnings. I'm not sure that's a reason to regulate Uber but it is a problem, just as it's a problem with taxis.