2) Is this per kid or per parent? That is, do you get more "points" if you have three kids and spend an hour with all three than if you spend an hour with just one of them, or does it count the same? Per kid the latter'd be lower averaged over the three, per parent it's the same. Looks like it's per-parent but I'm not entirely sure.
[EDIT] notably, if it's per-parent, this doesn't necessarily mean kids are getting as much more total time with their parents as it might seem. Mom spending an hour, then dad spending an hour separately, is 2 hours of kid-with-at-least-one-parent time, but both parents at the same time for one hour is two parent-hours of time but only one hour of time-with-at-least-one-parent for the kid.
[EDIT EDIT] of course the other metric would be vulnerable to that too, I was sloppy. Point is I'd be curious how much time-with-any-parent for each kid went up over the same period.