That is actually a marketing story, dangerous and unrealistic to believe.
Esaym is talking about teaching his kids a real skill they can use. It certainly won't override their ability to learn and persue things- it'll actually make that possible. It'll enable them to make decisions in life without having to pray they can find a way to make money, and they'll have a fundamental skill that'll help them whichever way they decide to go.
People don't generally get good jobs by their own elbow grease. They get them because of their network and connections. Your family is a huge part of that network, and passing on a skill like a trade is one of the surest ways you can ensure your children actually have a future.