There are tons of plugins that deal with auto-updates. The latest round gives the option for plugins and themes, not for core. All three should be optional.

I use this plugin: https://imgur.com/HGGGbpK

Here are the options, quite simple: https://imgur.com/cZIzMCB

What if an update done by the auto-update screws up the site?. Manual updates, I am right there to fix things if things break up, screw up, F*** up.

Forced auto-updates are so wrong.

To reply to some of the replies to my post here..........yes I know some people have clients, updating 100 sites take so long........well, your clients pay you to keep things up to date (maintenance), update the sites manually. You shouldn't be charging your clients if you turn on auto-updates, you aren't updating/maintain if you do.

I update close to 385 sites for my clients. I get paid to do that, so I do it. Part of maintenance is to make sure the site does not screw up.