Kids playing in parks and making a noise is acceptable in my mind so long as it's not just screeching, I'm buying a house in August which is near a park and fingers crossed it's not too bad
We've got a playground about 100m from us and the noise from it really isn't bad. What you tend to find is the kids there are accompanied by parents. A parent who has decided to actively spend time with their child. Normally this tends to mean said child is raised properly and is well behaved.
Both of my neighbours have kids and they play out and what not (one of them loves to sing at the top of his voice as he plays) and it's really not disturbing because again, the parents actually bother to play with them and spend time with them so it never goes beyond an acceptable limit.
What we have around the corner however is "The Whingey Brat". I cannot stand this kid. All he does is shout at the top of his voice, screech (like a wounded animal) and cry. He literally doesn't talk at a normal volume he just shouts at the top of his voice. However one observation of his parents made it perfectly clear why. Glued to their phones. The garden is full of climbing frames, swings etc. but they never play with him on them. His behaviour is quite obviously an attempt to try and get attention from them.
I can't stand 'pubs' with kids in if i'm being completely honest. The parents are much worse in the sense that they use it as an excuse to go out and get some what bladdered
They're parents who don't want to accept the responsibility that being a parent entails. They think they can still act as they did before they had kids and that raising the kids is someone else's (normally grand-parents) responsibility. It's almost they like have kids because it's the done thing, they don't actually want to be parents they just want to have a child.
I worked with a guy whose wife was the epitome of this (the marriage broke up as a result). Basically she wanted kids. He wasn't really ready but went ahead to keep her happy. They had 2 kids spaced 2 years apart and from the outside they looked like a picture perfect family. After maternity leave she went back to work because she missed 'the social aspect' despite it costing them more in a month for childcare than she was earning. By the time she travelled to and from work she was literally seeing the kids for an hour per day. She still went out every weekend because 'I deserve a social life, I work hard and earn my own money'. Which meant she was then invariably hung-over for at least one day of the weekend and out the previous night. As soon as the kids came along he gave that aspect of his life up apart from the very occasional night out.
He worked out that in a week she was seeing her kids for less than 2 days. The kids she 'wanted'.
She still goes on like that now that the custody is split and the kids stay with her parents most nights. He has them all weekend and can't spend enough time with them. Sadly he spends most of the weekend undoing what the grandparents have done as they simply will not discipline the kids who are now, by his own admission, spoiled brats.
She seems to think that spamming facebook and twitter with pictures of her 'angels' makes her the perfect mum.