Exactly! Its definately better than being a video game zombie... My guess is they are just trying to get the most of the last few days before school. Plus, what 13 year old wants to hang out with their parents?
I don't think a ton of 13 year olds want to hang out with their parents, but I also can't see why they couldn't go to the park or something (depending on the neighborhood). I think it's important that the kids get to be outside, absolutely - I just think the parents could have driven or walked with the kids to a place where they wouldn't bother anyone, or (if the kids were old enough and in a safe neighborhood) they could have ridden their bikes there on their own. Kids this old should be able to be outside on their own, but these two obviously couldn't handle it - they should have some adult intervention when getting rowdy, at least.