I think one of the first things that will happen with self driving trucks will be that we essentially get around the limit on how long a truck driver can be on

I think one of the first things that will happen with self driving trucks will be that we essentially get around the limit on how long a truck driver can be on the road without a break since they will be able to sleep in the truck. That might be the end state for the foreseeable future, but as others have said that person no longer needs to be a driver, just someone to load and unload. At some point we'll begin to ask the question of whether it's worth paying someone to travel around with the truck, or if we'd prefer the cost savings. If you're a white collar place ordering heavy equipment you'll probably just pay the guy, but if you're a warehouse you already have a pile of people who can handle that.