****ing Tudor advert!
I digress; if it’s a concert, either a small gig, or a stadium, then anyone going ought to be able to manage for the two or three hours they’re going to be there, or else just go to the bar. Sometimes events hand out water if it’s warm. Festivals, well my only recent experience is the IoW Festival, which had a total ban on glass bottles, which is to be expected. I have memories of the Reading Festival where ZZebra were handing out free vinyl singles, which promptly got flung around like Frisbees, and Party Seven cans being hurled through the air, both resulting in people being helped away with blood streaming down their faces, I saw two young women in floods of tears covered in blood from a thrown can or single.
More recently I’ve been to gigs where bottles of water are allowed in provided the lids are removed, otherwise you have to bin them. This is a H&S issue, apparently, because of the danger of people standing on dropped sealed bottles which act as a roller underfoot, causing people to fall, which I can also understand, it could lead to quite nasty injuries if suddenly falling backwards.