At what age could these kinds of separations be initiated? At any age? Does that imply that children would need to be convinced of this being a real possibility as soon as they're old enough to understand it, so that they're capable of voluntarily choosing it?

And once I've taught them about the conditional nature of love (and the parent-child relationship) am I allowed to go ahead and teach them about Santa Claus? There's a whole new spin I could put on the Christmas tradition (He's making a list, He's checking it twice, He's gonna find out who's naughty or nice. Santa Claus is coming to town!...)

Meanwhile, is it ok to use religious indoctrination to prevent children from considering adoption a viable option (on pain of eternal damnation)?

Can I legally lure children off the street with candy? How about push advertising targetting the well know vulnerabilities in human cognition? Can I start a cult which is to be propagated by preaching the Divine Will that all followers attract and adopt as many children as possible into the fold. Heck, most of the existing religions would lap that up straight away.