Did you get a calling when you were a kid?

When I was a kid, I felt a calling to change the world. I also had a knowing that my son would be involved in changing the world also. I thought it was a unique experience, untill my friend said that her son, who is about my age, said he was going to change the world when he was a kid. So, I thought maybe I wasn't the only one. My son then, told me he got the same 'calling'. So, have you or someone you know been called as a child to change the world? If so, do you know any more than that? Thanks

purpose