Screentime management by parentd

As far as I can tell there is no way for 2 parents or guardians to manage a child's screentime unless they are 1) Apple family members and 2) share purchases is turned on. The first requirement is perfectly fine, but the second forces parents into the unacceptable choice of requiring one adult to pay for all purchases even if one parent wants toake their own purchases and not share them (especially a problem for divorced parents).

It should be possible to turn off purchase sharing for one adult "family member" while maintaining their ability to set screentime limits for their child.