Maybe it is a new thing in Pakistan, but just like Bonbiennere said, they are quick to come and go. Besides, you should wear what suits you best, and not because something is the trend and already thousands of other girls wear it too. Same goes for the capri-trend I have seen in Pakistan. Living out of pakistan culottes and capris are a must for the summer, so already bored with wearing that.
Nevertheless, it looks nice on some.