The article is from 2015, but nothing has changed.
Realistically, I think the US University experiment does a good job teaching this with first-hand experience. Giving a kid significant access to money they'll make in the future, surrounded by positive and negative opportunities to spend that money, and no clearly correct path to follow since the answer is dependent on your personal background. That's a recipe for learning to think quickly. Though, it's like pushing the baby bird out of the nest, you might only have one shot to get it right.
Realistically, I think the US University experiment does a good job teaching this with first-hand experience. Giving a kid significant access to money they'll make in the future, surrounded by positive and negative opportunities to spend that money, and no clearly correct path to follow since the answer is dependent on your personal background. That's a recipe for learning to think quickly. Though, it's like pushing the baby bird out of the nest, you might only have one shot to get it right.