Yes and no

in Canada we can no longer buy or sell handguns so more than one is a good thing as l see it thing do wear out and occasionally break we can no longer buy parts for said handguns. Also I don't want to shoot a whitetail with my 300 win mag but I don't want to shoot a moose with my 6.5 creedmore. I do kinda want to shoot gophers with my 300 win mag but the 22 is more reasonable both on my shoulder and my wallet. Plus a 12 gauge for ducks and geese is necessary when using required steel shot but a 12 gauge on a pheasant can make a pretty big mess of it. I do also just have a short barrel on my 12 gauge for home/bear defense.

But I also agree better to be trained well in 1 or 2 guns (pistol and a rifle) than a bunch of different guns with their own idiosyncrasies that you have to think about when using and its not just a automatic ingrained reaction.

I have a friend who has 5 different deer guns and I've seen him forget for a second wich gun is in his hands