I have one thing to say about high school drop outs:
YOU ARE A *expletive deleted* IDIOT!
There is no excuse for dropping out of high school. Period. If its too hard? Study. Kids make fun of you? Boo Hoo, Tell somebody and/or ignore it.
With out that magical peice of paper they give you at the end of grade 12, it is very hard to get a job, and don't even think about getting into any college or university, most of them won't even touch you till you get your GED, and some not even then.
There is no excuse. Don't go and make justifications for dropping out, because there is none. And if you do drop out, get your GED.