Yes, but a lot more of people marry than try to put rockets into space!
Also, it's not like Elon its doing all the math and engineering, he has people that does that for him, which is the hardest thing in the putting-rockets-into-space business
The "math and engineering" aren't the hard parts. Few people can raise that kind of money, form that kind of vision and try to compete in that kind of race. Low level engineering is important, but there's a reason the other rocket companies (Scaled Composited) aren't heard about nearly as much or doing nearly as impressive of things.