Modern dialectal ax is as old as Old English acsian and was an accepted literary variant until c. 1600.
https://www.etymonline.com/search?q=ask
So older, yes, but also possibly a separate phenomenon unless certain people happened to still use that variant when enslaving people.
Japan is slowly getting better, but it’s a long road ahead. There are more laws and they’re actually enforcing some of them with regard to harassment and hours worked (a lot of people would clock out and keep working, but they’re trying to make the penalties bit enough to stop it from what I hear. My company is certainly strict about it).
It’d be nice to have european-level vacations before I retire, but that I don’t see happening