I normally only carry one knife. Usually a modern folder with a clip. Gotta have a clip. Sometimes I'll have a multi-tool on my belt plus a folder but not very often. A fixed blade may be worn instead of a folder but usually only when the planets are in perfect alignment or I'm camping.
October of last year was a bad time for where I live. Napa and Sonoma counties suffered from huge fires and very high winds. Many people lost all they had. Seeing someone having lunch or dinner in their nightclothes because they have lost everything is something you don't easily forget.
I think I carried a fixed blade and a multi-tool during some of that. I do remember packing a bug out bag with a fixed blade in it.
Because of what happened, I now have a small pouch in the Jeep that I use as an extended EDC. It contains a notepad, pencil, small flashlight, Gerber multi-tool, band-aids, alcohol prep pads, scalpel, scissors, lighter, extra power cord for the cell phone, a cleaning cloth for my eyewear, and an Alox SAK. I don't think I need to carry more than one knife in my pocket.