Why do people wear UGG's when it's raining?

Do you not know that these shoes are not rain-able? It's mocca for christ sake. 

Every freakin' day I see young people wearing ugly wet uggs and I find so disgusting. First of all, I would never wear shoes that were damaged like that, and second of all, don't you people have rain boots? 

Rain boots isn't what it used to be, now there are all kinds of excuses to look pretty in nasty weather. 

How about these from Vivienne Westwood?

...By the way, these are not my Uggs, because I would never destroy them like that. 

Ugg pic from: http://stephanie-nguyen.blogspot.com/