Whatever happened to Mexican waves?

We went to see Sam Ryder at the Wembley Arena on Thursday. He was very good to be honest. Live music is always the thing though he was very very good. T is a big fan. Whilst waiting for the support act ( The Lottery Winners, also very good) to come on I mentioned the fact peolpe just don't do Mexican waves any more.'Good' said Tara, but I used to quite like them. Not sure why, probably because it filled in abit of time before the band came on! Anyway, the support act had been on a little while and what did the singer say? 'Lets do a Mexican wave!' A very half arsed attempt then followed proving if nothing else that people don't do them any more. Don't know why though. Well, thats my thought for today. Link to afew pics: https://www.instagram.com/united_beetroot/p/DQwTvJ1iH4T/?hl=en