personally I see it is a conversation about parenting priorities.
For some, being able to take children into a variety of eating establishments knowing that they will conform to the social norms of not running round and disturbing other people, is a priority. For some not something that has crossed their minds. or perhaps has but they don't mind too much.
it is the same as all parenting decisions we make, what for some is a priority for others is insignificant.
personally I fall into the more conventional view of things most of the time yet am happy to have friendships with people who parent differently.
I am a stickler for table manners, eating with cutlery, not getting down without asking, using a napkin, waiting for everyone to finish, please and thank you's, trying a bit of everything. Extending it further, school uniform is as school prescribe without deviation, homework is always done on time (with exceptions for illness). ETC.. I feel more comfortable conforming, I feel like I need to prepare the boys for some of the drudgery and just get on with it that happens as an adult. And yes they play outside and make a noise in the garden, but no I don't let them scream and shreik for hours as I have neighbours and I wish to be considerate to them.
Smug?? no but there are times that I feel immense pride that I have had an amazing meal at a very grown up place and the boys have been able to experience it with us, purely because they know how to.
WOW I didn't expect that to be that long... eek!