My mother and I hoped I was having twins, so I could have one of each. Turned out to be ONE boy - was concerned about that because no one in immediate family was good at sports.
I needn't have worried. From the time he could walk, he loved machines- toys, real ones, anything he could pretend was one. At four he had a hand-me-down several times old computer and that was IT!!!
Paid off. Freshman in college, and a scout(?) from the "Mothership," had him fly to Wash. for interview. He interned for them for two summers, when he graduated he had a quaranteed job, plus many perks.
He calls his mama once a week and does come to visit a couple times a year.