I don't know, I got my first laptop at 13, only out of necessity. I'm still using the same one and I'm going to be 18 in less than two weeks. I've spilled stuff on it, dropped it, everything. It's still alive and kicking.
Well for me being a gamer and all, I believe that a desktop is best for gaming, and a laptop is best for work, and college, or Armorgames, I currently have both though