My husband is also a brit, now American citizen, and he just doesn’t give a crap how his teeth look. ( bottom teeth crooked and one that’s chipped. ) And I think he’s that way because of the way dentists were in England back when he was growing up. I keep telling him he’s in America now, go get them buggers fixed!!!
His aunt who is in her 90’s has what I call,”the queen mum’s teeth” because they are stained brown from years of drinking tea.
Teeth are very low on our national list of priorities. We just don’t give a monkeys. Quite right too; all is vanity.