I get the need to pick up and carry things (although I can tell it'd take me a few attempts to know what I need to use any of that stuff for), but you shouldn't have to use that key when you are near stuff that goes right into your inventory that you'd need anyways. The character is trying to survive, I shouldn't have to tell it that it needs to pick up that extra bottle of water, extra container of water or that extra bit of hope to hold out when I can't find a reason to even care that I still exist (The controls were easy enough, but I couldn't really follow how the status gui worked, and I kept losing all hope in the face of adversity)
(note: Also, I am entirely aware of how petty of a feature it is for me to focus my entire comment on, but it's that same spirit I assume that if it's something I personally neglect to mention, it's something that would never be brought up. In truth, I expect most times where I decide to write a comment, it will be written under a very similar context. If you do find someone else that comments on this very specific, very insignificantly obscure aspect of your game, please try and let me know, so I can maybe get in touch with this person.)