tongue_of_colicab
Veteran
Doesn't sound like you're talking about Japan at all.
Japanese people have very high salaries and have probably the widest age spectrum of active gamers in the world (definitely not just students).
They generally choose not to purchase powerful desktop PCs because they take up too much space, consume too much power, let out too much heat and noise, and most of the domestic games they prefer to play (JRPGs, visual novels and 2D fighters) either end up on consoles or can be played in a small and silent laptop.
The motives for PC gaming not being big in Japan are mostly cultural, not financial or demographic.
PSVR is the top seller in the US and Japan, the Vive is the top seller headset in China.
Oculus is the top seller nowhere, apparently.
Working and living in Japan I can tell you that salaries generally aren't great, even when hitting manager level etc. If you are single and don't mind living in a crappy'ish apartment yes then you'll haven "plenty" of money but want to live someplace with a bit of room or start a family and then it quickly starts to become difficult.
I do agree pc gaming isn't really Japan's cup of tea though not necessarily because of space (if you can fit a desk you can fit a pc), noise (Japanese love noise), heat (good for warming up your cardbox house in winter, so great in summer but then again summer is so hot a pc is not going to make a difference), or power consumption (power isn't that expensive and with the 80 electric heaters and aircons everybody has a pc is not going to make much of a difference). Then again, the local Yodobashi Camera (big electronics store) has a pc parts area that is larger than the whole console gaming area.
Aren't they private schools? In public schools it's written in the law about 5-day school week but it doesn't completely prohibit a Saturday class with some reservations (attending special classes, sports activities, etc.)
Saturdays are usually reserved for bukatsu (club activities). It kind of depends on the club you are in but especially sports clubs are pretty strict and you have to show up. Then there is juku (cram school) which a lot of kids attend after normal school hours.
Working and school hours are unnecessarily long. Mostly because the concept of efficiency does not exist in Japan and because there is no merit in it. If you finish 17:30 and go home half the office will be going like "why is this guy always going home early while we're here until 7, 8, 9pm?". It is all about perception. It doesn't matter what you are doing, or whether you are doing anything at all. What matters is, is that you are there, doing the same as everybody else and not causing problems (by not being in the office). This is for example why Japanese hardly every take time off. If you take time off for more than 1 or 2 days that will be perceived as causing problems for your co workers because you are not there and somebody else will have to take over.
I'll give a example of a company that we had some project at. There was a guy working in the export department and his boss was very happy with him, hard worker always leaving 9 or 10pm or whatever. You know what this guy was doing all day? Copying excel files cell by cell.
Another thing I hate is people "running" in the office. Japanese spend half their day "running" up and down the office. Now I say "running" because they aren't actually running, just making a running movement while walking at normal pace (and normal Japanese walking pace is pretty damn slow). Again this is all about being perceived as being hard working and busy. Any normal company would ask themselves why people need to run up and down all the time and move whatever the fuck they're getting closer.
So if you're ever in Japan or ever have to deal with Japanese; Keep in mind it is all about perception. Make it look like you are working hard, make it look you are willing to do everything for the other person and definitely adhere to whatever protocol is set. No "but", buy "yes".