Everyone should know how to do this, guns or not. First aid is important. There are allegedly something like 30k serious chainsaw injuries each year, plus all the other serious injuries you get in trades, warehouses, shops, and so forth.
I need to throw some more supplies in my bleed stop kits. I have the basics for big stuff, but should add some closures/zip stitches for bad cuts and lacerations.
Word. My med kits are all built around serious bleeds - tourniquet, icb, clotting sponge, then work downwards in order of lethality. Which is great in an emergency, but frustrating when i realize i forgot to add basic bandaids again.