In defense of eveready cases they do provide a degree of protection from bumps and bad weather.
For a camera body with single short lens (the way I most often shoot) I'd rather use an eveready case
and neckstrap than lug around a gadget bag full of gear I know I won't be using.
FWIW the part that remains attached to the camera makes the camera far more grippable.
Changing film as infrequently as I do removing it is no real problem.
Today these are sold as "half cases". They're popular among Leica users et al, and quite pricey.
Most used SLR cameras sold by private parties seem to include an eveready case;
apparently the original purchaser thought they're a good idea.
Further used cameras that were kept in one are usually in far better condition than those without.
I have alway found the amount of hate eveready cases generate among some quite humorous.
If they don't make sense for you don't use them, but please don't tell me I shouldn't like them.
You are welcome to laugh at me when you see me with my old-fashioned "neveready" case.
But rest assured others may be laughing at you with your ridiculous photo vest or backpack...
Chris