In any family with an over riding interest shared by parents and children alike, those children will do better in that interest than if they come from a family where the rest of the family do not share that interest.
Look at all those young footballers, skaters, gymnasts, swimmers, divers, tennis players etc who do so well because their parents devote their lives to encouraging their children, Judy Murray, Tom Daly's Dad, Lewis Hamilton's father.Do you hear the same complaints about these children and their parents that you get when someone has a child who is a gifted musician or mathematician or artist of any kind. Of course you don't, or very rarely.
This thread covers almost every 'ism' there is sexism, racism, inverted snobbery, resentment of children with intellectual gifts. Kanu Shaku-Mason won Young Musician of the year, not just for technical brilliance, but interpretation as well. I look forward to hearing more of all the family and listening to the music that this gifted family will give to the world.