How does Uber, or any ride share, prevent & stop the service from being used for violence ?

I say for one stop accepting cash rides. That is the stupidest idea ever. Even though it is official at least in some markets.

It is bad for the driver and passenger. Cash rides that is. Of course only if anything happens. Though the question is if but when more so. It can be anything simple not like the worst thing to happen.

Agree you will not prevent it all but even if just a few it is worth it.