Every room in the home, including the bath room(s) should have a gun in them. Caveat: if you can afford to do it ... which I can’t ...
I probably can, if that was my top priority, but there are family members that should be kept away from easily accessed firearms which is why we secure them.
When I started dating my wife we were at her parents and sitting on the couch and I felt something between me and the arm of the couch and retrieved a revolver and said hey you have a pistol in your couch and my father-in-law never bated an eye and said yeah just leave it there I have them all over the house and if you find one its loaded. He wasn’t lying, I had to use the bathroom once in their bedroom area because the other was being redone and I was doing my business and stared to look for another roll of toilet paper and popped open the door on the vanity next to me and there was toilet paper, feminine products and a Colt 1911 in 9mm.
I carry a Makarov in a holster rig under my truck steering wheel for quick easy access, you have to hunt to see it and which I place in my console when I get out of the truck. Personally I pocket carry either a Kel-tec P32, Taurus TCP .380, a Sig P365 or a snub nose .38spl in a Mika Pocket holster for all these.
I have a friend who has a gun in every room including his bathrooms. Told me he never wants to be in a situation where he’s on the can and someone breaks into his house.