Depends if you plan on working for someone... or working for yourself.

I made about 14/hr @ 18 when I worked for the contractor of IBM, then I made between 23-26 an hour with 45-50 hour weeks @ 19-21.
Neither I would consider "great" money, especially not the former but the experience you gain can sometimes counteract the lower pay.
Main advice I can give you, is don't listen to what a bunch of people on the internet have to say about it. Especially if they haven't been there and done that for themselves.
