So if you start your work life at 16 and retire at 67, that will give you 51 years working, 14,5 years in retirement and 16 years as a child. That is the “best” case here in Germany, most people won’t work that long, other countries have lower retirement ages and many people are doing additional schooling and university. But even that means that you have to put away / pay into retirement fund 14,5/51 = 28% of your income during your work life to support your retirement.

You don’t need a kill switch. If you’re flying F35 and the US decides to cut you off, you won’t get replacement parts. Some repairs are only available in the US, so your fancy bird won’t fly much longer

Suse is a german company and therefore Suse Linux has some improvements for german users. And if you’re doing it to get away from american companies to get your own sovereign OS, that totally makes sense. Better localization and from your country. And the support might also be in German