Because I didn't know I couldn't.

I have been a busboy, a limousine driver, a security officer, a police dispatcher, a telephone operator, an office supervisor, a TV station master control operator, an alarm center monitoring operator, a celebrity protection bodyguard, a writer, a paid "extra" in several movies, and more. I might have tried other things but I really hate filling out those pesky applications. I suspect that I have been able to do all of these things successfully because my parents never told me I couldn't. Sometimes what you don't you say to your child can be just as life-shaping.