I don't see the point why so many people record concerts live on their phone. I get the part they are recording to maybe share memories, but recording the concert itself is unnecessary for that, all you have to do is take 1 or a few good focused pictures of you at the concert, and that's all you really need for memories. No one wants to see a badly recorded famous person with bad audio quality and bad horrible angles where you can barely see anything. Some say they record concerts to post it on their social media or show friends, and again, no one wants to see them horribly recording a concert at a horrible angle, when people can easily find the concert professionally shot at perfect angels from the artist team themselves.
All the 100s if not 1000s of phones in the air just ruin the concert, and makes no valid sense why so many people do this. They aren't getting the full experience, and recording it for no real benefit, cuz no one wants to see their badly recorded version of the concert.