I agree on that, but I would go that even further that the whole ameteur career is waste of talent. Go Pro as early as it is possible, like Canelo.
There's no valid reason to waste time on different sport. Some do it for get experience/self confidence or marketibility for pro career. But if you are really talented you should start focusing on professional career early on. Some fighters do that and do amateurs on side. But that's just distracting, focus on pros early on, get yourself good managers who make sure good matchmaking. There are too many politics and fishy situations in amateurs that I even think as dirty some say professional boxing is, it's different but we could argue which one is dirtier.
So focus on 12 round fights, forget tournaments, make sure about matchmaking and prepare for selected opponent, forget amateur scoring system. Stop wasting your time with amateurs.
You start "learning" your trade in the pros, you’ll end up with a bunch of losses, massive and career wrecking beatings and with no shot at making it big.
Canelo had massive backing (and I think about 50 ammy fights) before he turned pro and he was greatly protected for the first 30 odd fights of his career.
That kinda backing is exceedingly rare.
You’re more likely to end up a Emmanuel Augustus with an even record and more known for clowning in the ring than the extremely hard nosed fight he’d actually give you in the ring.
The pros is all about marketing (don’t let the cheerleaders fool you) and nobody gives a shit about a 30-23-8 record fighter.
Give the good managers / promoters etc a reason to invest their limited time with you. A good ammy career attracts a lot financial and career interest before you’ve even laced up your first pair.
Instead of reinventing the wheel, just do what is proven and learn the ropes, away from the pressures of professional fighting, in the amateur game.
Nearly every great fighter worth his shit has taken that route (exceptions don’t disprove the rule).
And that holds true even in the point scoring age (1989-2013).
Ward, Dirrell, Crawford, the Charlo brothers, Usyk, Joshua and on n on.
But you do you.