[ants_everywhere]

IMO it's up to the Romani to decide not the UK census site.

But in fact it seems to be the term used by some Romani groups

> The term Gypsy, which originates in the word "Egypt", mistakenly believed to be the original homeland of the Gypsies, has been controversial.[8] Some Romani activists reject the term, but it is embraced by others.[8] Although the term "Roma" was endorsed in place of "Gypsies" at the first World Roma Congress in London,[9] many Romani people in Britain prefer to call themselves Gypsies, or names that include the term such as Romani Gypsies or Romany Gypsies.[10][11][5][12][8][13] They also commonly refer to themselves as Romani or Romanies.[14]

(from https://en.wikipedia.org/wiki/Gypsy,_Roma_and_Traveller)

I believe (but can't find a clear source) that there are also Native American groups that prefer to be called Indian. This is a close analogy Egypt <-> Romani, India <-> Native Americans.

But it is true that many people only recently stopped using "gypped" as a slur. My kid was reading A Wrinkle in Time and looking for vocabulary words the other day, and I had to tell her that "gypped" was probably not appropriate for her homework and that we don't use that word anymore. So that's one reason to be aware that "Gypsy" is controversial. In my experience, many people are not aware of this fact at all because it so rarely comes up.