I’m going to give a slightly different suggestion.

You may find it interesting to develop an program without using libc.

Use raw syscalls and make a completely freestanding binary.

This is not as low level as bare-metal but might give you a better understanding of how operating systems work.

You could try writing some core utils replacements

This will only really work on Linux though. Any systems programming language with inline assembly will work fine.

In a way I think being able to derive a formula is a much more valuable skill than rote memorisation, especially in higher education. That being said I’ve also done this when I was just lazy and didn’t remember my lessons…

I can’t speak as a parent, but as someone whose parents entitled me to duel nationality I’ve found myself very grateful.

After the Britain left the EU my other EU passport entitled me to continue moving round the EU without limits, free Uni, etc.

The increased freedom and backup home country in case of disaster is really powerful so definitely worth it IMO.

As for retaining ties, it’s hard not to settle in one country but having family you can stay with in either country makes things far easier.

Also make sure to teach your children both languages if you can, I found it helped develop my multi cultural interest and made it far easier to learn more languages later.