Right - but then as soon as the priest starts demanding that they keep a half hour of silence before the start of Mass, get the gum out of their mouths, and dress like they’re coming to Church, etc., they all leave for a “better parish.” He has a very tricky job - it’s hard for him to know when to speak up, and when to just grin and bear it.
Also, people either don’t listen, or don’t understand that it applies to them, too. When we put out a dress code for Confirmation last year, the girls were fine (and so were the boys, of course), but some of the Moms turned up in sleeveless beach dresses. The Bishop didn’t know where to look.

I have suggested that we have a supply of kimonos or shawls or something to put on them for next year.