Not a 'Myth' though is it.... That would imply that literally no OAPs are well off. We know for a fact that's simply untrue. Millions upon millions of them are very, very wealthy. A healthy majority of the over 65s at this point are...
Just because SOME aren't, doesn't render my first paragraph...
Anyone in London over the age of 60 is almost certainly sitting on millions in assets and probably a large pension too. These clubs are smart enough to realise they do not need nor is there any logic in providing them a tasty discount.