Do the robotaxis self dock to refuel?
They are working on a system for that now. It will work like a late model cell phone and contact charging.
Tesla Cybercab uses wireless tech to recharge. It just parks over the charging spot.
There are several approaches which allow charging without human intervention.
At the moment, I would not find it too terrible to get out of the car to plug it in.
Taking into account charging time, perhaps the range per day would be closer to 1200 miles. Still competitive with air travel.