An iPhone without a CASE is just pre-cracked waiting to be post-cracked. Bad cases will permit corner cracking if the fall is from high enough, and face down on a sharp or hard pointed or elevated object, not a flat surface like the floor will crack the screen. Look at the depth of the raised side of your case to get an idea of its ability to protect the phone if it hits face down. The lower the ridge, the less protection.
The last time I purchased a brand, new phone, on the very first day, even as I was logged on to find the perfect protective case for it, I got off the toilet, and it slid out of the breast pocket of my shirt landed on the floor, only 3 feet away, and cracked the stupid face.
I couldn’t believe it.
Like the writer, I usually handle my phone as if it were indeed a Faberge egg I just did not have the time to purchase the perfect case for it, which I usually do
Lesson learned
If I ever buy another iPhone in the future (or phone of any kind) I will treat it with the care I would use as if it were the smallpox virus, I would have a glove box, a door with positive ventilation, and a hazmat suit.
It wasn’t that I can’t live without the phone it’s just that the damn things cost so much to buy , if you buy one that has the storage and capability you need and it seems wasteful to break it so easily.