This was discussed by the vets and board owners at the Anabolic Fitness Consensus Statement Thread. The "Age of initiation" consensus is at the top of the AF board. The thread itself is in the AF Hall of Fame.
There is no absolute age. I believe it should be the point where you hit a plateau in training and have exhausted all other options to try to get around it...and there's no way this should be anywhere near the early 20's...let alone 18.
I started at 20 as well, had about 7 years under my belt, was real strong already too naturally(benched about 300), but nontheless I still regret that alot. Probably oneof the stupidest thing I ever did to myself.
I started at 20 as well, had about 7 years under my belt, was real strong already too naturally(benched about 300), but nontheless I still regret that alot. Probably oneof the stupidest thing I ever did to myself.