How do identities change?

Citizenship

Being part of a club such as scouts is an example of what type of identity?

Which of these are part of a sense of belonging?

Which of these is NOT a reason why identities change

How many parts make up the United Kingdom

It used to say "British Passport" but now says "European Union" on it

It used to say "European Union" but now says "British Passport" on it

In what way has the British passport changed, which shows that Britain's identity continues to change?