Hollywood is fickle; your career can end pretty fast. If the acting jobs dry up, you have to have something to fall back on. In fact, that would be my advice to kids interested in acting - make sure you get an education too.
As a kid it's adorable to have a gap in your teeth. But then, because of the shifting in my mouth, I started whistling through it, and as a 32-year-old woman, whistling while you speak in sort of annoying.