Personally, short of constant construction (BTDT, ain’t fun) and/or outlaw bikies setting up a clubhouse across the street, who cares about a little noise during daylight hours? Kids walking in the street and playing outside should be normal, not an annoyance — thank G-d that the neighborhood is safe and nice enough for kids to have the opportunity to be out and about.
For the record, my apt building in NYC is between a grammar school and a park with playground and pool. Lots of kids, emo pre-teen skatepunks, etc – it gets to be no big deal after a while, even on summer weekends with windows open.