The truth as to why girls roll their sleeves up (and numerous other things eg tying their pe shirts up/ stitching their skirts up etc):

We all deny it or avoid admitting it, but it's human nature to want to look good. So what is the point of chicks rolling up their sleeves, you ask, when there is no practical reason? The answer is obvious: Because it looks better!

Contrary to beliefs, it is not only the crowd which motivates this act, and it isn't based on peer pressure at all, in fact, the phenomenon is triggered by one's own perception of themselves. When you look in the mirror in the morning, would you rather see yourself as something close to this:

or ThIS???

Obviously the latter! Also, the under-estimated size of the sleeves tend to create the impression of a wide figure, and thus, it creates a..... I don't know how to explain it, it just looks unbalanced ok!!?? It lowers self-confidence... which is probably the reason why all chicks feel insecure at school photos. Guys never seem to understand the problem girls face with their school shirts, after all, guys don't have to put on a school shirt every morning which has sleevs billowing down to their elbows.

Another thing: most of the girls who don't roll their sleeves up have already stitched them up.

Some of you are probably thinking: Wtf, all you care about is looking good.

Well I'm just telling the truth, and it applies for everyone.

I think it was last year when George said that some guy called her a slut because she rolled her sleeves up. Wanting to look good isn't a crime; it's the way our mind think, and the reason we spend money on clothes.

Say, why are guys so afraid to tuck their shirts in? Surely not because they think tucked-in shirts unflatter body shape? O.O