If you have the right passport, save up your coins and go max out your time in Japan when the pandemic is done done... do your homework ahead of time and then do what I do. Wander around night and day with zero purpose for weeks on end.
Or just go on YouTube and search about vending machines in Japan.
It's rather alarming the first time. The amount of them, the strange variety, the random ass locations.
In USA, at least in my experience, vending machines are lame af and always the same general stuff everywhere. When they aren't, when it's like soup or coffee or cocoa... you're better off going to the basic vending machine if you've no other options. Although different people like different things, so maybe some of you are into that.
In Japan, they got like pasta vending machines, pizza vending machines where the box itself works like an oven. They got all kinda stuff. Even vending machines for masks.
Cyberpunk genre cities are mostly inspired by Japan.. primarily Tokyo.. In CP2077, this is also very clearly the main inspiration for Night City.. as well as of course there's Arasaka and all that. It's the free independent city backed by Arasaka. So it's far more influenced by all of that and not a real north American style of metro.
One thing about locations too.. in USA, every vending machine I ever recall encountering was either in a business area, school area, rest stop or hospital. This isn't the case with Japan.