I often talk and get a drink with tourists at hostels in Tokyo. When I ask them what they want to do in Japan, many people say that they plan to rent a go-kart and drive on a public road.
Then, I ask if they have an international driver's license issued by their country.
Some of them don't have one.
I tell them that you have to show an international driver's license when you rent a car.
They are disappointed to hear that.