Chefs' hats

I don't get them. Why are they so tall? Some are puffy at the top, some aren't. Is there a significance? Do they feel the need to be taller than the rest? And they look a bit unbalanced. What if they fell...maybe they're designed to fall and therefore have the chefs mind their heads all the time. Or maybe it's for them to get a false sense of height and strength, ergo, keep them in check. "Yes, you've reached the pinnacle, now wear this hat so your head doesn't grow".