Going hunting requires 1) weapon 2) method to clean game 3) survival equipment.
Using the pocket knife to do the job should get us all to thinking whether the "game" knife was even needed. Nonetheless, all knives should be on you - not in the jeep, or forgotten on the table where you loaded up. When you get dressed and fill your pockets with all that other stuff - cell phone, wallet/tag holder, chapstick, EDC flashlight, handkerchief, spare magazine - put the knife where it goes, too.
You never know, you might just get up in the treestand and realize you forgot your rifle just as a 10 pt buck ambles by, but with your trusty knife, you could take the jump . . .