I see you've met my SIL, We went to the ballet and she allowed her then 4 year old to talk though out entire performance of Nutcracker. THE.ENTIRE.PER.FOR.MANCE. I told her repeatedly to quiet the kid, the ushers asked her to leave, the people around her finally told her to "shut up" and her response "she's asking about the play, she can talk." and made no effort to quiet her.. it ended up with two rows around her standing in back so we could listen to the music rather than the kid.
I still refuse to go to movies, symphonies and plays with them, and they can't afford to go it I don't pay - so they don't go and I get told that I am 'denying the kids culture in their lives because I am too selfish' for refusing to inflict the kids ( who have still not been taught to shut up during a performance at 8, 11 and 18) on other folks.
As far as culture snobs: my music teacher is the worst. He teaches, actively , that fiddler players can never be as good as symphony players, even if they have a Master's in Music Performance "because if they were actually good, they would not be playing fiddle" - and that they "are always out of tune" and more. I am telling you if there were another teacher willing to take on adults in my town, I would move, but there's only him in reasonable driving distance.
I went to an Orthodox Jewish wedding recently, and there was a mother and grandmother in front of me with a little girl, maybe 4, who talked VERY LOUDLY throughout the first 5 or so minutes of the ceremony. The kid very nearly drowned out the cantor, which was no mean feat given that the man had lungs like an opera singer. After the mom/grandma finally noticed that the entire women's section and the nearest portion of the men's were looking over, the mom took her out. I mean really, it was a WEDDING, and the kid would. not. zip it. Obnoxious.
We had our annual school district meeting a few weeks ago to which a woman brought her toddler. The meeting is for 7 local high schools, about 150+ attend and sit for 2 1/2 hours listening to budgetary, safety, staff concerns. The toddler proceeded to laugh, scream, bang, run, grab things off the table and generally make the meeting hell. I sat, unfortunately right behind her as I had chosen my seat before she came in. My teeth were on edge the whole time and I had to keep hiding my purse, keys and water bottle.
At one point the District Supervisor, head of the entire meeting, offered to take the toddler for a walk around the grounds after his discussion. The mother, rather than be ashamed, took him up on his offer. He came back after 15 minutes (he had to chair the meeting after all!) and the fun ensued again.
Finally, after 2 hours, District Supervisor pushed the child's stroller towards the mother and asked that SHE take him for a walk. Cue the toddler running in and out of the open door at the FRONT of the room, screaming as mother tried to restrain him from coming in. Rather than leave, she chased him in and out, smiled exasperatedly and appeared to think the whole thing "cute." It was unbelievable. Worst meeting EVER.
I think I'm writing a discreet e-mail to the DS and ask that children be banned (and I've raised two myself!). BTW this was an older mother, not a youngster with no clue. No excuses.