Can you "Pull that off?"

I always hear people say things like Well, you could totally pull that off, but I couldn’t… And I’m wondering…What’s that all about??

Animal print is one of those things that people say they ‘can’t pull off.’ 
Is it a self-confidence thing?  (I know it’s not a size thing cause at a curvy size 12, I rock my leopard print jump suit like it ain’t no thang…and yesterday I bought an amazing vintage purple cheetah print knit skirt that I plan on wearing the minute I have an occasion for it…pics coming soon…)

So, what’s the deal? Since I’m kind of fearless when it comes to approaching pattern and color,  I want to know (not just for animal prints but all types of things…) why some people think that they can’t ‘pull something off.’

Do you ever find yourself saying or thinking that “I can’t pull it off?” Why?

Faux Leapoard Skin Clutch
Leilanni Land Leopard total look
Shoes By Charlotte Olympia found here. 
Beachy Lepoard Pillow Cases