It's okay if there are differences. Arab-speaking countries use RTL, which causes huge issues everywhere. We don't tell them to change their language, we just adapt to it. Software developers are not using M/D/Y anyway, and everyone else who deals with international business should already understand the difference. When I see a non-American date, I assume D/M/Y. It shouldn't be that hard to expect supposedly cosmopolitan Europeans to do the same.
> Software developers are not using M/D/Y anyway, and everyone else who deals with international business should already understand the difference
That's a pretty major assumption that does not jive with experience. Date formatting inconsistentices were the bane of my existence in my last role. Maintaining clean databases that has input streams that came from Canada, the US and Poland constantly caused problems. Yes the company had standards of how to properly do things. Were those standards followed? Not all the time. Especially when data sources came from 2nd and 3rd tier downstream suppliers. Did people try their best? Yeah, for the most part. But that doesn't prevent mistakes.
