Wait, were things different as recently as 2018? I just remember when I was into concerts, circa 1998, most people just stood there unless it was a big hit playing, but a significant amount of people would always dance or just jump like crazy near the middle of the pitch. I did recently went to a punk concert from a band from the late 80s , so most people there were my age. It was just like the old times. A lot of people went crazy as this was a band that had only good songs to play! But some around me thought that they could just stand there and film with their phone. They quickly realized that they would had to move away as nearly everyone around just started jumping like maniacs, just like in the 90s . I can’t comment on the new generation though as like I said, I don’t frequent the scene much anymore and when I do the younger people only go to accompany their parents, I guess.