Can a family and a school both manage the same phone or tablet?
No. A device has one organisation. Android allows one device owner, so a device is managed either by the school or by the family, not both. On a school device, parents get a read-only view. A family can use Skie for Parents on its own phone or tablet instead.
Skie works as the Android device owner, and Android allows only one. That means a device belongs to one Skie organisation at a time. If a school provisions it, the school sets the rules. If a family provisions it, the family does.
That is a feature, not just a limit. Two sets of rules would conflict, and the student would not know which applied. A single clear owner makes the rules predictable and the responsibility plain.
Parents are not shut out of school devices. Parents on a school-managed device are read-only: they can see their child's device without changing the school's rules. And parents who want to set their own rules do so on the device they own, using Skie for Parents, which has its own dashboard, schedules, location and lost mode.
A common question is a student who brings a personal phone to school. That is a separate device, outside your organisation unless you choose to enrol it. If you plan a bring-your-own-device policy, decide on the owner first. The BYOD vs school-owned post covers the trade-offs.
A practical tip: if a family wants to move a device from school to home use, for example at the end of the year, use Remove Skie to release it. It deletes no apps and turns off the protections, and the family can then set the device up fresh under their own management.