Yeah, that is true but also note that a lot of people in that age DO use steroids but no one admits it. The whole fitness industry is built on people on steroids trying sell others that they are not on steroids.
Except heavy weight bodybuilding of course where it is too obvious.
It's a shame all the supplement brands use heavy weight bodybuilders as their mascots, because if there were any discipline where supplements alone just won't cut it, it's for anyone aspiring to be Mr Olympia.
The vast majority of people could get away with real food and regular training to reach their actual fitness goals; not many people want to be as big as Ronnie Coleman. But if you do want to be a competitive bodybuilder in America, you're going to need more than supplements.
The fitness industry also did a great job of convincing people that supplements are the cause of, not an aid, to muscle growth. I was in the ER once for a broken finger, and the poor kid next to me had been to the ER twice that month for stomach pains, and it turned out he had been sitting at his computer slamming down 10 protein shakes a day and doing nothing else. Just one of many similar anecdotes from when I worked in the industry.
Except heavy weight bodybuilding of course where it is too obvious.