Not a fan of making fun of accessibility aids, even if they are being used for what seems like a silly reason to some, it can give those who legitimately need them (and we don't actually know that the person in the photo doesn't, do we?) the message that they would be mocked if anyone found out about them using something they need (unless they disclosed their disability and explained why they need them to what is likely a bunch of strangers).
Not trying to have a go at you OP, just saying - inclusivity matters, and it includes considering and being welcoming to people with all needs.
Just so cynical. TSwift is huge everywhere. And tickers are nowhere near expensive enough to be limited to trust fund kids. A majority of that audience is middle class and the tickets will be varying levels of affordability. For a small portion of that audience the show will be a multi year saving situation and will be the highlight of some childhood dream.
Unless you have some kind of medical issue, you could just go to the toilet before and after and drink very little during the show. If you're there for the music and not just to get drunk, that is.
There was a crew of guys all wearing diapers and nothing else at a fairly hippy music festival. I inquired and one said they’re all tripping balls on acid. I later like 2am heard commotion in the area behind my tent and went to investigate and it was one of them dancing his heart out alone in the dark with headphones on (music acts had ended by then). Love the random shit that happens at festivals.