Yes, certainly there have been many youthful champions in the past. And in any endeavor youngsters with precocious talent will come along.
What I was more interested in, though, was whether changes in the scoring system tilt the balance toward skills that children are naturally good at (or at least easily trained, compared to older competitors). Maybe rotating really fast in the air is just something that young bodies can learn to do and old bodies can't.
I think that the evidence so far shows that no lady has started learning how to rotate four times in the air after age 15. Someone like Alexandra Trusova (a one-of-a-kind talent in any case) may be able to do more quads per program and to add other types of quads as she gets older. But so far, it looks like 13 or 14 at the latest is the time to begin.
This is what I mean by referring to this particular skill a young person's game.
But mybe not. Elizaveta Tuktamysheva mastered the triple Axel at a later age.
I guess we will have to wait and see how coaches respond. But it just seems to me, if I were a coach with a 12-year-old wiunderkind on my hands, that I would be tempted to look at the ISU Scale of Values, see: "Quad Lutz, 11.50 points," and take my cue from there. I am not saying whether that's good or bad, just that I believe that the sport will be different going forward.
Last time I looked, average podium age at worlds for ladies was kind of stable since the 80s.