We were on a cruise a couple of years ago sitting near a family of 22-24. It was grandma and grandpa, 4-5 children with spouses, and 10-12 grandchildren. The grandchildren probably ranged from 1 to 13 years old. These were the most well behaved children. The whole family conversed with each other. No one was looking at a phone (except to take pictures), they didn’t need a tablet to keep them entertained. The baby was fussing one night mom took him out of the dining room and came back when he was happier.
The last night of the cruise I told the grandparents it was a pleasure sitting near them and they have a lovely family.