> They're your children -- you're going to want to call and check to see how things are going.

If you think that's "obvious", then explain why. Because as you put it, it's just false, not everybody does that. Not every kid would stand for it, either.

For one because the competence of a babysitter includes handling emergencies, making the practical use of randomly "checking in" (from some remote location) moot, but what's more, it's randomly checking in -- and not actually trusting the competence of the babysitter and having a cell phone with you so they can call you when there is a problem (you can actually help with). Don't dress up neediness as utility and wisdom, badly.