Why do adults feel the need to eat sensibly and in a tidy fashion?
That doesn't seem like fun at all. Mum said not to play with your food. Well, mum doesn't pay the bills anymore now does she, so have at it I say!
You are dead set lying to me if you haven't wanted to just insert your chomping li'l face in to a big plate of spag bol/ice cream/dip before! How good would it be to just literally put a claw hand in a bowl of kiwi onion dip?! Claws like the ones they have at arcades where you never actually win ...
Do it!
The only thing stopping you is the judgement of other people and, if you're alone, what you've been TOLD is standard practise.