maya_b π¨π¦I wouldn't lump Taylor Swift in with the billionaires implied, though she is one, and despite a family that would have helped her succeed in life, I do think she made most of her wealth.
And she tipped her touring crew millions, effectively paying them well over the going rates - atypical billionaire behaviour.
(also not entirely sure at what age she technically became a billionaire - she's 34 now.)