The world has a lot of different standards for a lot of things, but I have never heard of a place with the default screw thread direction being opposite.
So does each language have a fun mnemonic?
Photo credit: https://3.bp.blogspot.com/-Giy8OrYJTjw/Tfm9Ne5o5hI/AAAAAAAAAB4/c7uBLwjkl9c/s1600/scan0002.jpg
If you’re looking head on to the screw/nut/whatever then we’re talking about the top of the screw/but/whatever.
You can also imagine if the nut was actually a wheel. Which way would you spin it to make it roll left or right.
Confused the hell out of me at a young age. That’s how I came around to thinking of it