I’m guessing it helps that they had a rock star mom! :) I don’t doubt you were and continue to be a great mom, or that your book has solid parenting advice, but I can’t help adding that the success of your daughters is also the result of several lucky breaks — having intelligent and well educated parents, being raised in Silicon Valley in the midst of the tech boom, having enough money, being white, lacking a brother to compare themselves to (and noticing unconscious bias), going to good schools from pre-school on, being born without mental or physical illness, etc.
As the mother of a woman with a PhD in genetics, a man who struggles with mental health, and a man in small business, I’ve been made aware many times over the years of the impact of luck and also the subjective metrics of success. For my middle child, being able to survive outside a hospital setting is success. That said, I admire your magnificent high school Journalism program and inspirational teaching skills, and I wish you great success with your parenting book. I’m not trying to throw any shade. Just to reassure the other parents out there, like me, who don’t produce CEOs. :)