Obviously, but in my experience, at least, normal non geek home users want a computer that just turns on, they don't want to be logging on to different accounts

Obviously, but in my experience, at least, normal non geek home users want a computer that just turns on, they don't want to be logging on to different accounts, let alone managing them. Even I gave that lark up. With 6 kids it almost became an unpaid support role. Yes, of course there would be some of that for the browser, but managing browser logins, and what not, is less overwhelming for mum and dad. Also, given all the integration we now have, I guess that a chrome login account will transfer from device to device. So, perhaps the setting on the home PC's chrome, will still apply on say the tablet's chrome.