I guess I've carried a knife for so long (60 years) that I take them for granted and don't understand your question. Backing off and thinking about all the things my knives have done for me, I would have to say,
picking splinters out of my hands
lancing a boil
cutting string, cardboard, paper, plastic
cleaning fish
butchering game
slicing fruit
whittling
shaving fire starter
etc
etc
Those are my users. Most of my accumulation (collectors have focus

) are safe queens and stay locked up in my safe or gun cabinet. Those I look at, fondle, polish, show off and enjoy.
If you take a shine to knives, what you do with them will be up to you.
Forged on the anvil of discipline.
The Few. The Proud.
Jerry D.
This country has become more about sub-groups than about it's unity as a nation.
"The #72 pattern has got to be pretty close to the perfect knife."
--T.J. Murphy 2012