I have had few phones over the years, few of them I damaged by using them in bad conditions, mainly on construction sites.
As far I can remember I have never cracked the screen. Phones are and always were fragile, its a piece of condensed technology, with large glass screen. What do people expect from glass dropped from 1m? Just take care of your shit.
It always amazes me how can people cary their phones in back pocket or just throw it in the bag with keys or other sharp objects.