Again, just no. For no reason whatsoever, no way, not ever! Letting people stay on their version of choice AND knowing they’ll get security updates for it is a huge plus for WordPress, and with the other changes in recent years may be the only major one left.
Regarding the choice, those three options there, I’ll always prioritize maintaining old versions, that most actual users – the people who just want to use the software to get something done, be it personal or business – are content and familiar with, over new stuff, which mainly just the developers particularly care for, plus a small number of users who want to be on the bleeding edge, often more to test and/or show off than for present needs and actual practical use.
And regarding auto updates themselves, again, no, no way, not ever. Period. This is the developer taking over the reins of the site from the user, or whoever the user designated as their site admin. It’s what MS is doing with Windows 10 for crying out loud, and if that’s not a model of what NOT to do, what should never be acceptable for anyone, anywhere, I don’t know what is. And, as I see it was pointed out, finding themselves with a different version may well lead some users to believe that they’ve been hacked. And there’s no amount of warning and explaining that can make that right.