[BillEllson]

Anybody, or anything, can have its own flag in England.

[pjc50]

Yes, although there is a meaningful distinction of those which are registered under the https://www.college-of-arms.gov.uk/ or not.

[throwaway290]

Now I have to wonder is there a place where this is not true?

[petre]

Of course anything can have its own flag. That’s how the British stole entire countries /s

https://youtu.be/hYeFcSq7Mxg