As a former Uber/Lyft driver, I had to pull over and at least shake out whichever floor mats people's shoes were on after nearly every single ride. Some kind o

As a former Uber/Lyft driver, I had to pull over and at least shake out whichever floor mats people's shoes were on after nearly every single ride. Some kind of visible debris usually ends up on the floor immediately when a person enters the vehicle. Often there was worse stuff to clean up. It was a rare exception that someone didn't leave any trace at all. I've seen some of the cars of drivers who clearly don't clean as often, and they can get pretty gross looking (at least in daylight) pretty quickly. I think these self driving taxis are going to need really good internal cameras, a vast network of human cleaners large enough that one is always reasonably nearby, higher pricing and a strong fine/fee system to avoid looking nasty for the majority of riders. With maybe a little less cleaning needed at night.