I think that this was the secret of the Little Finn style of knives that were popular when I was a kid. In the 1950's, it seems like every other man who was an outdoorsman, a real hunter and fisherman, had one of those little leather washer handle Case or Kabar or even Western on their belts. They all were mostly a 3 inch blade of some pretty thin stock. They got used for fish and game up to deer sized animals. The thin blade didn't seem to be any kind of detriment, but if anything it was a plus to the people who carried and used and loved them. I even remember seeing a mini finn from Western Cutlery. It wasn't much bigger than an open peanut, but still had the stacked leather handle and small thin pointy blade. It was sold as a small game knife.
The road to small is an interesting journey!