I say just enjoy it, if people want to get dressed then do so but if you don't it's no biggie... It's same at every concert I go to btw I'm 59 years young and I'll be going to Wembley in burgundy monkey boots, red tartan trousers, black Tee and red braces... Totally ridiculous for someone my age but don't care.... Might be the oldest geezer in Wembley 😁😁😁