My kids know who Metallica is. It was the first concert they ever went to. My boy was 11 and my daughter was 13 at the time. Bonus: We all rode our bikes to the concert!

Before anyone asks if I took them into the mosh pit too, I should probably mention that the 'concert' was a free show they put on in the parking lot of a nearby Tower Records. No mosh pit. My son was fascinated. He wanted to get closer to the stage (the bed of a flatbed big rig). So we left my daughter and the bikes with some friends we met up with there and headed for the stage. As we got closer, the music got louder (obviously) and we started seeing shopping carts being passed over our heads (towards the stage). My son had seen and heard enough (vertically challenged, only 11), so we headed back to the bikes and watched the rest of the show from there. When we got home, I had the kids call my ex wife and tell her that we just got back from a killer Metallica concert. Cool dads take their kids to Metallica concerts.