It's amazing how it happens. I think it comes down to someone has to keep an eye on the kid at all times until it gets to a certain age and you generally trust

It's amazing how it happens. I think it comes down to someone has to keep an eye on the kid at all times until it gets to a certain age and you generally trust the kid. It's unfair for one parent to keep an eye all the time so there's a lot of unscheduled switching off.