I think there is a bit of difference betwee 'fun' and 'harrassment'.

Too many places are built with out a 'child friendly' area. That is an area where they can play without disturbing others and where it is safe for them to play..

I, and others, have had kids screeching around outside bedroom windows at 11pm. I tried to speak to the parents but it was basically 'what can i do - they are children'. 4 year olds should not be screeching around at 11pm.

And children are like pets... if you can't look after them properly - Dont have them!