DSLR and teenage trend

I write this because DSLR now in my country is like a trend for teenager same thing with smartphone (i mean the real smartphone) or even tablet PC. Actually it is not matter. As long they used in productive and positive way. And moreover that now DSLR has video function. So motion picture thing is something to learn. Productive means: you can send your photo work for competition, you can earn money by building collected photo stock that can be sell, or you can do job as freelance photographer.