Brainstorming this idea with a work buddy, a potential problem with battery swaps is simply the physical space needed to store replacements as they are charging. Think of the number of cars that go through your average gas station, how large batteries are, and how long it takes to charge them, do some fancy math, and....... (not quite sure. SOMETHING happens.) That's where the energy density of gasoline v. batteries rears it's ugly head.
Getting charging stations is a bit of a chicken-and-egg problem. People won't build charging stations because not enough people have electric cars, but people won't buy electric cars due to lack of charging stations.
I'm personally intrigued with hydrogen fuel cell technology- we just need to find a way to make it practical, and find an extraction process that doesn't waste more fuel that it produces.
In all honesty, my personal opinion is that the energy issues should really be looked at before we start mucking with self-driving cars, but that's a topic for ANOTHER thread entirely.
1969 CT90- Needs rear tube and possibly rings
1976 GL1000 (Yellow)- Carb Shenanigans.
1984 GL1200 Standard- For Sale!
1980 KZ1300- Carb balancing when the weather warms up
1972 CB750 Barn Find- Tires and Head Bearings
All advice I give is only valid until an expert corrects me.