Getting to this level takes 7-10 years (from a cursory Google search), so he could have it by his early 30s.
Usually the worry blue collar/trades people have is when their body starts breaking down in their 40s/50s and they are still having to directly perform the manual labor. This happens even in kitchens in restaurants. But putting in 10 years in his youth if he stays in shape in a less physical trade mitigates that a lot.
Another alternative if you don't care about making a lot of money is military/USPS. You'll be retired with pension by 40. And with the military, you will have the opportunity to train as a knowledge worker on their dime if your interest skews more in that area than physical labor. Even with those, there's ways to finesse things. Even if you wanted to go that route, it'd probably be better to try to be an officer rather than enlisted. So you'd have to get a bachelor's degree from somewhere, and make sure they will pay off your student loan debt.
But it really just depends on what you're trying to optimize for. All of this advice assumes OP doesn't have any kind of safety net (like a trust fund/inheritance that will vest when he turns X age like 25 or 30 or parents willing to bankroll whatever he wants to do), and that he lives in the US and is solely concerned with having a career where he can eventually make six figures that is unlikely to be made obsolete during his working life by technology.
If he does have those things, then the question becomes a lot harder more philosophical and harder to answer. You can try and fail at a lot of different stuff and it won't matter. So pursue whatever interests you.