Reminds me of a trip at least 25 years ago to Montego Bay (out of LGW, I think) on a BA 744 (I think it must have been)
We had managed to get the exit row in Y (I was young and fit in those days!) and children ran up and down the aisle and played around noisily in front of us, dashing in and out of the loos and banging the doors. The CC sympathised and said, "If we say anything to the parents - we'll get sceamed at."
One of them said something I have not forgotten, "We are on a 7 hour sector and we presume the parents know that but AS they step on board - they ask for free nappies for the baby."
So I think we can say that pax have been making their demands for a long time ...