I’m can’t decide where I sit on this one. So asking the MN feelings …
At a sports match this morning watching teen kids play. One of the younger siblings is sat on the sideline in a chair, with the phone playing music and then watching videos. It was fairly loud.
On one hand I think we’re outdoors, it’s harmless, on the other hand, I find other people’s noise really distracting (but appreciate this maybe my issue).
YABU - It’s fine, outdoors can’t controls other people’s music / sounds
YANBU - don’t play music / phones / videos in public places without earphones even when outdoors