This phenomenon is called "fashion" to be exact ;-)
No no no. You see, "fashion" in America starts in California. (like in Europe most of it starts in Paris, from what I hear)
You see, every teen in America "learns" what to wear, say, eat, drink, and look like from tv shows like "The Hills" and all that gay crap. Something starts getting popular in California, and in 6 months it will get popular in New York. Thats how it works 99.9% of the time now a days. With the long hair though, they all just sort of grew out the hair on their own. Nobody on TV had long hair, even bam Margera (who is a god to the skating world because he makes an @ss of himself on TV, he's funny but he can't skate worth $hit) had short hair when all of this started. Tony Hawk = short hair also. All of the big name skaters had short hair when all these kids started growing their's out. Thats why it surprised me...and kind of grosses me out because half of them have really disgusting hair when its long...they just don't know how to keep themselves clean I guess.
It would have been more gradual of it was "fashion" Magda