So while I'm not sure about the origin of manual vs automatic licenses specifically, it's not really surprising in the broader context of Japan's strict stance on driving.
In practice it means if you want to drive manual, you need to take the driving test in a manual. But seeing as how only 13% of foreigners pass Japan's practical driving test on the first attempt, and I hadn't driven manual in years, I wasn't looking to make things any more difficult for myself.
[1] https://ourworldindata.org/grapher/death-rates-road-incident...
Deaths per X km driven would be a more useful statistics. Japan has such a well functioning public transport system which just leads to people driving less.
Road fatalities per 10,000 registered vehicles were also higher in the US, at 0.4 in Japan vs 1.3 in the US.
Japan does have a significantly larger share of deaths coming from pedestrians (36%) and cyclists (15%) vs the us (18.2% vs 2.9%, respectively) - which is one of the challenges of driving in Japan. You constantly have to be on the lookout for pedestrians and cyclists coming from any direction, often on narrower streets with obstructed visibility.
[1] https://www.itf-oecd.org/sites/default/files/united-states-r...
[2] https://www.itf-oecd.org/sites/default/files/japan-road-safe...
Even worse was when I lived in the countryside and I'd try to go for walks down the road and motorbikes absolutely maxing out would rocket past me not giving a shit about who or what was on the road. Kinda funny looking back how the most dangerous place I lived was the Japanese countryside
Bonus points: near the end of the walk there was a two-lane road that I had to walk half a km to get to the nearest crossing for, and then half a km back. Bonus points for the one car dealership in front of my destination that was only fenced off on the back side just to spite me (or, more likely, they don't want people using it as a pedestrian cut-through). The road blocking my path was constantly jammed with cars. Somehow, Nagano invented the one-lane stroad! Also, Google Maps doesn't have a good understanding of crosswalk locations, because there was a closer one on the other side that you can't really see on foot at night.
[0] I am trying to go to as many Round1s as possible to get a title in Music Diver for playing the game in a bunch of prefectures. The game gets EOS'd at the end of the month (but only in Japan, which is unheard of). Round1 likes building giant locations in the middle of nowhere with terrible transit access. I think the one in Nagoya even had a shuttle bus from the train station - which I didn't use, lol.
If you took the automatic-only test, and have an automatic-only license, you can take an additional 7 hours of lessons to remove the automatic-only restriction from your license.
It does indeed make sense, since manual requires more skill, and attempting to drive a manual on the street without knowing how could be dangerous.
Funnily enough you can visit europe, and drive here on a canadian/US license, without ever having driven a manual.
Or you’re launching towards a wall, or, worse, pedestrians, by accidentally dropping the clutch due to poor feathering control.
The US does have separate license endorsements for manual in commercial trucks.