Continuing this from the Week 15 thread:
So much of this perception, I think, is strictly recency bias and NFL starts. Or course there are more “good” young QBs because there are more young QBs. Guys you listed are first round picks who, generally, get at least 3 or 4 years of slack (barring complete Akili Smith level meltdowns) before they get judged. As long as they show “flashes” (whatever that means), they’ll be starting NFL QB’s. “Not sucking” is pretty much the only standard they have to meet.
Sure Mahomes, likely Watson, are elite NFL QB’s. But Jackson, Mayfield, Murray, and Burrow all have their ups and downs as the game adjusts to them and, while , they’re capable of greatness at times, it’s still too early to judge them. Look at Carson Wentz, who has gone from the next great elite QB to dumpster fire in a couple years. And, as an aside, Jones and Lock belong nowhere on a list of better than average NFL QB’s.