For the decade or so I was a guider (taking girls from 5-18 away), there was a definite trend towards abysmal table manners.
During indoor holidays, we’d sit at tables that one six or patrol on Hostess or Orderly duty would’ve laid.
You could definitely see which children had regular meals with their families at a table; polite, knew how to hold cutlery, sitting on their bottoms not kneeling on a chair, and just had a good grasp of the etiquette surrounding eating together at a table.
Any special needs aside of course (and the Rainbows at 5 were still learning too), many girls didn’t know how to hold their cutlery.
Eating off their knives, whole roast potatoes speared with a fork & eaten without cutting into smaller chunks. Holding sausages or meat chunks in their hands as you would a hot dog. Using fingers to push veg onto the fork. More than a few over the years would only use their spoon & eschew knives and forks completely.
It definitely wasn’t a class thing; there were some stereotypically middle class families whose children were the worst offenders, shouting across the table, getting up & wandering off, or shovelling the food in so fast before wiping their hands across their laps. And the absolute worst girl lived in a multimillion pound house with parents who both had titles before their names! Good manners are not class or wealth specific!
As a parent, sitting down to dinner in the evening from when my kids were small (at around 6-6:30pm, eating the same food as the adults), gave us all a chance to talk about our day, and as they grew it became a great opportunity for a million debating sessions about thousands of subjects (still the case today now they’re adults)! It was a time to not only eat but learn how to listen & communicate with each other.
Of course we had the odd night with pizza in front of the TV, but like most things, it was about teaching good manners and leading by example, as well as enjoying each other’s company.