

Most countries have both - including the US.
The map is indeed confusing. It’s more a map of automatic-jus-soli / vs no-automatic-jus-soli. A child born of foreign parents in France can ask for French citizenship, whereas a child born in the US automatically gets it.





Because, as John Fetterman and Bernie Sanders demonstrate, you can be 56, brain-damaged and mentally incompetent, just as you can be 84 and a have a brain that’s sharp as a tack.
I think public officials should be required to pass a mental acuity test - and possibly a physical too, so they don’t disappear in a hospital for months instead of doing their job because their bodies are decrepit - like airline pilots, truck drivers or crane operators. You have to be fit for the job, and that should apply to politicians also.
And just to be sure it’s fair, the tests should be public.