Agreed - worth considering too, that kids like to get into t-shirts because it "seems pretty easy, like, I could make cool t-shirts". Then when it comes time for logistics, shipping, dealing with returns/bad addresses, customers pissed that their shirt hasn't come in the mail, etc, etc, etc. - "I'm done. I quit this f*ing business."

It looks to me like most monumental successes are created one of two ways: Out of love, or out of messing around. Savvy, experienced entrepreneurs and investors can make some bucks just "doing business", but when you haven't got the experience, love or curiosity is the fuel that keeps you going.