[Josh Grisdale]

As Limg_ling mentioned, there is no scooter restriction at temples etc, but often steps etc. A lot more are adding ramps lately though. Scooters can have more challenge on the trains though due to the turning radius. But those rules are loosening too.

Trains work well for getting around in cities, but in the alps, you may need taxis or a rental car. A folding-chair is a good option. If you are still looking for an agent, I’d highly recommend @ohayotravel as they specialize in accessible travel in Japan and can help arrange transportation and potentially a wheelchair rental.