This is a no-brainer. Your Mac has multiple user support built in. Every member of the family can have a separate user account on any iMac, MacBook, MacPro, or Mac mini.
Multiuser support is standard on the Mac. And very useful as it protects email, browsing history, documents and more, between users.
Why doesn’t the iPad have multiuser capability?
The iPad’s iOS is based upon the Mac’s OS X. It’s Unix underneath so it would be trivial to add multiuser support to an iPad.
Multiuser capability would allow every member of a household to have their own storage, their own music and playlists, their own photo gallery, their own email, and their own bookmarks, without sharing with anyone else.
The Mac can do that. Why not the iPad?
There are two basic reasons that the iPad does not have multiuser support. The first if physical. Storage. The entry-level iPad has a mere 16 gigabytes of storage. Compare that to the entry-level MacBook Air which has 64 gigabytes of storage.
Multiple users require more storage. The iPad doesn’t have enough storage to share with average iPad users.
The second reasons the iPad does not have multiuser support is psychology marketing.
Most of us don’t like sharing our devices. The desktop iMac might be shared between family members, but a Mac notebook less likely to be shared, as it’s a more personal, mobile product.
The same holds true for the iPad. It’s personal. It’s mobile.
Apple would prefer that each family member have their own iPad. As with the Mac, the iPad gets handed down, generation to generation. New iPads come into the home, and old iPads get used by other members of the family.
What may be shared are a few apps and games, otherwise, most iPad users want their own iPad. Apple knows the iPad is almost as personal as the iPhone, hence, there’s no need to give it multiple user support.