I can see the danger there, but it doesn’t sound like you do it too often. Is this more of just a worry in your head that you might do it or is it something you actually do with some frequency? When was the last time you actually flung your phone or dropped it? I guess even thinking about doing it once would make me worry.
Well, I don't do it at all. The weight of the phones I choose to own is largely responsible for that. Since the 5, I have owned progressively larger phones. My Pixel was an exception and although I love that phone, I do consider it too light.
The last time I dropped my phone (11 Pro Max) was May 2022. I was under the influence of an antihistamine for allergies. I wasn't paying attention. It was the same in September 2015 when I dropped my iPhone 6+. Although in that instance, I only shattered the screen.
It may just be more of a worry. I can concede that. However, again, I like the weight of heavier iPhones. For whatever reason, they feel more substantial to me.
Yeah, that makes sense, but have you compared how they feel in your hand? Like have you gone to an Apple Store and picked up the regular iPhone? Something about the lightweight just feels better in my hand. Of course that could just be me. I like lightweight watches, but I know other people like a big chunky stainless steel watch they can feel.
I'm not a fan of smaller phones, and it's primarily smaller phones that are lighter. I do love my iPhone 5, but compared to the HTC Touch Pro I was using before that, it's much bigger. My Touch Pro, however is heavier. And yes, I have both phones still. With my wife's old iPhone 5 and my iPhone 5, I use both as speakers for my MacPro.

My Touch Pro is still bootable, but has been getting less and less usable every time I boot it up.
As an additional point, I have both Tungsten and Titanium rings. The Tungsten is heavier of course and I actually prefer that. So, it just comes down to preference I suppose. Although, I'm still not discounting my ability to not be paying attention and damage something (usually myself).
I can’t exactly remember how many phones I’ve broken in 13 years but I can guarantee you it’s more than two. At least three screen replacements, and two complete damage requiring replacement. I honestly think it’s luck because some of these were in an OtterBox. Right now my phone has been in this cheap Walmart case for over a year and no breakage. I’ve dropped it several times. I got tired of the heavy OtterBox cases. I really like Mous cases but I think the one I had cracked after it flew off my bike down the street. The phone was okay though. I just didn’t want to spend another $60 or whatever because at that point I was considering upgrading my iPhone. Unfortunately cases aren’t transferable to the new models.
It would be a lie if I said I never dropped my phones, it's just that there's only two I had to have replaced. My lifestyle and career choice contribute to that. I gave up physical labor in 1999 for a desk job. And since 2020, I work from home - permanently. So, there's no real danger to my phones. If I had a physical job, I'd no doubt be using one though - at least for work.