Earlier quoted context omitted.
Try hanging up a call on your smartphone and your counterpart hanged up a a fraction of a second before you. Now you call someone (pretty deep down) in your recent call list. Or click "Connect to Bluetooth headset" in Windows. Congratulations, your headset just connected itself, so you now you disconnected it. Just brilliant, overall.
My mother got her first iphone years ago and was just petrified of the phone app. I couldn't blame her. You touch ANYTHING, even the spam caller in recent calls, and it immediately calls. why oh why can't there be a setting - on by default - confirm before dialing?
Or whatever. There are many solutions and they chose to go for one of the most frustrating designs possible.