You may have a question about how Japanese people drive. I will have to explain how we obtain driver’s license in Japan. It is very different from the US system.
First we all have to go to a school to learn driving skills and traffic regulations. Some people go to the driving school for few months before they try for pre-exam at the school. Or some people decide to go to few week long intensive schooling with boarding included.
In any case, Japanese people will have to complete driving training and taking lectures, then try for pre-exam. Sometimes, people will have to challenge several times before they pass. Then finally people with passing grade from the driving school allow to go to a driver’s license center for license exam.
Compare to American roads, Japanese roads are narrow and people are everywhere. They need to be very careful. Plus Japanese driving school teach strictly about how to park. Even if Japanese people just obtained a car license, it still means they went through intensive training on driving.
Only they need to do is getting used to driving in the U.S. I do feel that driving in the U.S. is easier than driving in Japan.
So, please do not judge on when they obtained driving license, instead, please ask how often they are driving.