It's a fad, pay it no mind.
No, it's cultural. And traditional. And to state otherwise makes you a hideous xenophobic, racist, apartheid-loving, get-back-in-your-box-black-man, politically incorrect, nasty piece of work who thinks the whole world revolves around you!
There's a sily old bint who sits behind me with her family. She brings one of those old fashioned rattles. Thing is after about 20 minutes or so each game I'm ready to shove that fucking rattle up her fanny, bitch. She's the sort that would bring a bloody Vuvuzela. Not looking foward to the first couple of games.