Oh, fine then, smarty pants. Where would you prepare YOUR meals if not in cookware?
Look, there are plenty of places you COULD prepare your food. But there aren't many places you SHOULD prepare your food. Not every storage location has the same advantages as Corningware.
DON'T PREPARE YOUR FOOD IN...
A CAVE Caves tend to attract the sort of things you don't want near your food. Things like bears and rabid bats. Do you want to deal with a knife-wielding bear when you go to make your dinner dinner? No? Then stay out of caves.
A WET SACK Unlike a dry sack, a wet sack is mostly likely to collapse under the weight of your food. Then you'll have a bunch of half-prepared food raining down on your shoes. There's no way that ends well. At best, you'll have a bunch of food to wash. At worst, your shoes steal all your dinner.
YOUR NEIGHBOR That's illegal and cruel. And kinda gross, too.
THE FIREPLACE Fire can help you prepare food, but you can't leave it in there too long. Perhaps you feel otherwise. But if you do, remember you'll be sticking your hand in the fire every time you reach for a nearly-burnt piece of cheese. Is that really a thing you want to risk just to have a snack?
COOKWARE IS PROPER. COOKWARE IS GOOD. KEEP YOUR COOKWARE HANDY.