This May Be An Age Thing
But when did people stop being quiet at the movies? Did I miss some edict which lessened the degree of common courtesy one shows in public?
And the thing is, I don't even go to that many movies! But when I do go, there are people just yakking away like they own the place. Well, kiddos, you don't.
My one rule for my children --- all of their lives --- when we went out in public was, "Act like you've been somewhere before."
Some folks need remediation.