My mom has this very interesting theory: A parent needs to be by a child's side for the first 6-7 years of their life and devote all their time to it. Which is what she did with me. My dad stepped up for the challenge and provided for both of us. My mom had one goal: to make sure that I'd stay curious. She taught me how to read at the age of 4, signed me up for piano lessons(I haven't played piano at all nearly 3 decades later but I can still read notes), she made sure I'd be interested in different cultures, which subsequently pushed me to learn a few languages(which is the biggest contributor to the fact that I am doing very well for myself by a huge margin, forget software engineering, speaking English was the one thing that truly opened up the gates for me). Which on a slightly lower level did exactly what the article says. For contrast, I was old enough to witness and evaluate the extreme opposite - my mom's brother and his wife, who had children when a dog would have sufficed their needs. Their children were pushed aside, no one ever spent any time with them, whenever they started crying, someone jumped over to the toy store, get a bag of toys and shove them in their face so they would shut up. To such an extent that their rooms were filled with unopened toys and I'm not talking about 1 or 2 in a box, I'm talking dozens if not hundreds of toys still in their boxes. Last time I saw these children, they were >10 years old and they had no clue how to use a fork and a knife.