It's, at the very least, a bandwagon bungee by the RP.
We should all be very concerned that the likes of ozgood seem to think it's appropriate behaviour though and there has to be a chance that certain groups will look to establish their credentials through the summer. Might be nice if some of the snobbier courses realise that a jacket and tie isn't always the route to respectability. There are still courses in the UK that make owners buy a tie to gain entrance to the owners/trainers area when they have a runner.
As I said before, anything other than alcohol is likely to be confined to south of Birmingham as the white powder of choice further north is Johnson's Baby.