Standard "Next Review" date (in days or months) for all child pages.

It would be really nice if Review Dates could be set automatically for every child page of a space selected.

So for example, let's say I have a Procedures app page (SOPs), where all child pages are Procedures.
I would like to set the next review date for all SOPs to be 12 months after publishing date or 12 months after last review.