The idea here is that you can use multiple Apple IDs on each device, and at the same time each Apple ID does not need to be enrolled in every Apple product, feature and service. Decide what products and services you want to use first and determine how each device will be used. If you donât, before you know it you could end up with a real rats nest of accounts.
Do consider using one master family account on all devices to manage iTunes purchases, and use that same shared account to track the location of all of your devices. As an added bonus, you could use the calendar, contacts and reminders with this shared family iCloud account as well. Once you have each device configured with these basics, let each family member decide which third-party email service they want. This may well be the best strategy to employ, until Apple sees fit to enable multiple users per device.