Smaller classes would help until parenting trends change (assuming they would, but maybe they won't).

There is no longer the firm expectation that students sit and don't disrupt. One kid in a better, younger grade seemed to have no rules at home, and possibly has ADHD, the school allows him tablet time and free roam if he gets bored--so they don't bother others. Since other kids were continuing to work the kid had nobody to hang with. Parents came in and said my kid feels left out when they are free roaming with tablet, and asked school to give all kids free tablet time during lessons so their kid doesn't feel excluded.

LOL. Until that flawed logic parenting style disappears we are going to have issues in classrooms.