I have 2 children, my neighbour that backs on to me has children of the same age.
The noise level from their garden was horrific. It was constant, it was loud, and it wasn't just play noise, it was arguing, crying, fighting.
I knew their names and the names of several of their friends within the Spring half term because they were constantly being repeated, and at no stage did the mother try and get things to a lower level. In the end, I said something to them.
Absolutely everyone has a right to enjoy their own home and garden, but them enjoying theirs in the way that they were meant that we couldn't enjoy ours.
No one expects silence from their neighbours. My children make noise, my dog will bark, that's life with neighbours. But I am considerate. If the kids are screeching and arguing they get told to stop, or they'll have to come in. If the dog keeps barking and won't stop he gets sent in. I don't want to hear it and I chose to have them in my life, why would my neighbours want to?
Noise is normal. constant, excessive noise day in day out is selfish.