So what is better? I think you're wrong and a tablet with iOS or android is the best form factor for computer illiterate people to get something done. Despite whatever bullshit they added, everything else is worse. But maybe you know of something better?

All you need to understand this is to watch a chimp browsing Chimstagram on an iPhone: https://www.youtube.com/watch?v=XTiZqCQsfa8

Forget computer illiterate, not even human let alone literate!