When you could go out shooting on your own? I was 10. The RR tracks were 75 yards from the house. It was 1/4 mile from the tracks to the city dump and another 1/4 mile to the trestle. I'd go to the dump and shoot all day with my Browning SA. Or walk halfway across the trestle and shoot stuff floating downstream. I got a .22 SA revolver for my 10th birthday and that made it a lot more fun. I couldn't ride a bike on the road until I bought my own at 16 but I could go shoot by myself.