Groveton, N.H. - 08-25-12- Keith Kopp (cq) of Lancaster, N.H. and his racing family and friends watch a race from the back of his roll-back trailer at Riverside Speedway. His 12-year-old son Matt races at the track and he sometimes wonders if a parent should be putting a 12-year-old in a race car. (Globe staff photo / Bill Greene)