Never heard anybody mention them while in the US they seem to be common and well known. As well as private aviation has a different standing in the US in my ex

Never heard anybody mention them while in the US they seem to be common and well known. As well as private aviation has a different standing in the US in my experience. Saying "not a thing" might have been to absolute, but my impression is that flight shows are much more known and I would assume more common in the US.