"I say if you do not become a millionaire in the next 10 years, then its your own fault."
It's a big statement! An 18 year old male who grew up in an affluent family, is not a good fit for making such statement! Becoming a millionaire doesn't make you eligible for such statements!
I remember this kid. He came off like a privileged, entitled jerk in his interviews. Not everyone is given thousands of dollars by their grandparents to buy whatever they want!

It sounds like he was just immensely lucky that his brother introduced him to Bitcoin, and that he had money to invest at the right time. That's a once in a lifetime opportunity!
he has great courage, because buying dozens of bitcoins even though at price of $1k, its includes large capital,
especially for his young age. That is the reward for every investor who is patient and brave