It is like book Outliers which argues practice over prodigy (and the 10,000 hour rule - start practicing something young and hit that hour and bam you are awesome). Somewhere between American norms and Tiger motherhood is a balance.
There are hothousers among us. To each their own I guess. But for those who do not remember - you do more with your kids because they ask for more. And you do more because you are more. Even if my kids were not pg or gt, I still would be the one at the zoo, pool, museum, reading, playing, building... that they are intellectually older than chronologically just makes some of those fun choices seem odd to outsides.
May they all turn out happy and ready to chase their own dreams. We succeed by getting them ready and then getting out of their way ;-)
