Jeff Bezos' eldest son Preston was born in 2000, making him 21 years old at the time of this writing. Despite being legally adopted by his Cuban stepfather, who worked as an engineering at Exxon Mobil ...

And, because the 55-year-old is engaged to billionaire Amazon founder Jeff Bezos, who heartily congratulated ... their eldest—son Preston, born in 2000—being the only one whose name is public.