I play the drums but I started playing the trumpet when I was in 5th grade. I told my parents I didn't like it because it hurt my lips so they thought that was it for me in music. The next year I was at an assembly and it featured sound of percussion, I was so intrigued by it all that I asked my parents to buy me a drum set. They were apprehensive at first after my first unsuccessful try at the trumpet but they bought me a practice pad. I never looked back at that point and when I finally got my full drum set I was practicing every day for 4 - 6 hours a day, driving my father mad. You don't have to start as early as 6th grade but it helps, I've seen people start in high school and if they have some musical ability it will come naturally and pick up to the instrument quickly. Practice, practice, practice if you want to be good.