Great picture! You don't even need the 70s. I was jumping ply wood laid out on cinder blocks when I was 8-12yrs old in the early 90s. Some of the best times ever! And of course we didn't wear helmets. Hell, I still don't wear one if I'm just on some light singletrack or something. Only if I'm riding rocky stuff or planning on some jumps/drops. Certainly not when strolling along casually on the road. This helmet 100% of the time crap is overrated(flame away).