I saw MORE "boomers" on their mobiles during the concert while most youth had their phones put away.
The youth were there (mostly) as musicians supporting siblings.
The elders were there as "oh, I got dragged to watch little Johnny/Susie's thing", despite the high quality of music.
Once upon a time I thought bad behavior was a quality of youth, as I've aged I realize how many people use their age as an excuse, and mobile devices are just the latest example.