That could result in existing TLDs going away.
One possible example would be Scotland voting to peacefully leave the UK. It's very possible the UK would change its name after that, since it's not really the union of those two kingdoms anymore.
It's the United Kingdom of Great Britain and Northern Ireland. Scotland is part of the former bit (Great Britain) alongside England and Wales.
England and Wales (927)
+ Scotland (1707)
+ Ireland (1802)
- most of Ireland (1922), leaving only Northern Ireland
The United Kingdom of Great Britain and Northern Ireland would probably change its name if Scotland seceded, but perhaps to the United Kingdom of England and Wales and Northern Ireland. The official ISO code (GB) would change (EI? EW?) but the reserved code (UK) need not.Wars of conquest, civil wars, dissolution and change happen.
For example when UK left the EU then all UK registrants of .eu domains were made to relinquish them. No grandfathering. This kind of nonsense doesn't occur on .com
For example, no one (well, perhaps we should say few) would argue that the United Kingdom of Great Britain and Northern Ireland is not a country, yet it operates ccTLD .uk which is not a country code assigned to a sovereign entity. GB is the country code for that country; UK is an exceptional reservation.
Do you happen to have a source that supports that claim? I've registered .eu domains in the past and I never had to even offer any proof of citizenship or residency or anything of the sort. I searched for the domains, clicked on "buy", and that was that.
And the .eu is not the most restrictive ! I am a French citizen but live outside the EU, so I can't get a .fr domain (at least, again, in theory - haven't tried in practice) but I could get a .eu one.
[1]: https://eurid.eu/en/register-a-eu-domain/rules-for-eu-domain...
[2]: https://eurid.eu/en/register-a-eu-domain/brexit-notice/
For example .uk - If one day we decide to ditch the monarchy and become a republic I imagine this might change back to .gb
Everything would probably be grandfathered in of course being a reasonably populated TLD, and .gb would probably be wayyy less popular because it kinda sucks as a character combo, but it's a possibility.