anecdotally there are two kinds of people, the people who break their phone twice a year and the people who break one maybe every 10 years. It'd be really interesting to see a probability distribution function of failure rates.
It was my Droid Turbo, which was known for having a shatter-proof screen. One of the things that helped achieve its durability was that the bezel actually had a lip around the screen, so if it got dropped, then the screen glass never took the impact.
That changed once the battery had reached nearly 4 years of age and had started to swell, pushing the screen outside the bezel. Dropped it onto concrete and it got one crack across it.
I replaced it with a Pixel 3, and then later a Pixel 6 Pro. I put cases on them, but they're thin TPU, and I use them mostly for being able to have a better grip, since the trend for phones now is a slick glass back which offers zero grip in your hand.
I might just opt for a pop-socket on my next phone. To be honest, I rolled my eyes at them at first, but I realized it was just cynicism for hating popular things. They're actually quite nice for using your phone one-handed, and almost a must-have considering how big phones have gotten.
While you may be in good health, it's important to remember not everyone is the same and some people are dealing with a variety of issues.
The anecdote seems true from my experience as well; people tend to either break their phones often or very rarely/not at all. Of course it could be that you are far more likely to take notice of someone breaking their phone if it happens often.
That's the only time I've come close to damaging a smartphone or tablet screen.
And the one ipad I've broken, I broke one time when I took it out of a case for a bit and ended up taking a few weeks to put it back in...
Honestly though I think size made a difference. The non-plus felt right for her but it was just more "droppable" for her hands.