There are 3 scenarios for Managing Fast User Switching settings for Windows Auth Client:
When the machine is "personal" (BYOD) and is NOT managed by the organization - the user who owns the device determines the setting - it is managed by the Student (or the Parent)
When the machine is owned by the organization and is not joined to a domain
When the machine is owned by the organization and is domain joined. This would also apply to Intune managed devices
Note:Windows HOME edition doesn't provide the tools for managing fast user switching - we can provide some guidance to change settings, but given the device is a home device, the parent/student is likely to use the out of the box Windows home experience, which probably should not be changed. Also note that Windows Home edition does not support being joined to a domain. Upgrade the edition of the operating system to pro or above for that feature.