comment: >
  
  The issue seems to be getting a lot worse.
  From my observations as well as research on related topics it seems like the pervasiveness of smart devices among young kids plays a large role. There have been several studies demonstrating significantly decreased emotional regulation because parents are giving iPads / iPhones to their kids when they're upset to distract them instead of having the kid learn to deal with and navigate their own emotions.
  Smart devices are also often being used as a tool to get kids to piss off and be quiet when they're behaving badly (no-one wants to deal with tantrums) instead of taking the time to deal with and discipline the kid. The same thing occurs when kids are hyperactive - instead of being given a talking to and learning the boundaries of obnoxious behaviour, kids are instead given iPads to entertain them.
  None of that even begins to examine the consequences that constant instant gratification will have on their brains from such a young age; kids and teenagers already have huge trouble with understanding the consequences of their actions as it is. We may have entire generations incapable of sitting down and studying because all they've ever known is click -> dopamine.
  Diagnoses of adhd have gone way up and while some of it is due to heightened awareness there's a good amount of evidence that it's being overdiagnosed. I wouldn't be surprised if this was one of the main contributors.
context: While you aren't wrong, it's still up to parents to keep their kids under control in public. I have 2 small kids and my 6 year old can get loud sometimes.