Hello
Here is a paper attempting to describe some of the issue with the <locale>
facilities
I offer a a few solutions to explore but there is no denying it will be an
uphill battle to remedy some of these issues.

My goal was mostly to have a document we can refer people to and have a
basis of conversation for ourselves.

https://github.com/cor3ntin/CPPProposals/raw/master/P2020/P2020.pdf

Feedback welcome before the deadline for Belfast!

Thanks,

Corentin