David, guess betterer next time.. lopes and cully both came from racing national level bmx as kids, as did gracia, only he’d also been a national level ski racer from an even younger age.
Girls don’t really count as to get a top 15 WC position you generally only really needed to turn up and complete the course in under half an hour..
All of the riders you mention came from families that heavily supported their chosen sport as kids (even Missy) hardly comparable to todays UK council estate kids on £50 BMXs
Mtb is a dull middle aged middle class man’s pastime where paying for bike fitting, skills coaching and keeping up with the latest trends is what’s most important.. Kids aren’t interested in joining fat IT managers in dayglo poc gear mincing about on bridleways