India here (also commonwealth). Accounting wasn’t in high school curriculum but tax calculation was.

But the UK doesn't! That probably tells you something about the UKs relationship with the commonwealth.

It's not compulsory, but it's available at GCSE and A Level; also in General Knowledge A Level I think.

Granted they have a bit of a reputation for being 'lesser' subjects. I don't really agree that everyone needs to be taught this though, most Britons don't have to 'do taxes', and aren't running companies. It should probably form a part of trades' apprenticeship training (and for all I know it does) due to the higher prevalence of self-employment (and thus running a business, and self-assessing tax even if not incorporated).

chicken and egg

No accounting in the French general high school curriculum. And I can’t see it being introduced (it would be seen as an unacceptable intrusion of capitalism in education).