Almost everything I wanted to say has already been said.
I'll just add this: I've been interested in science since day one. To have a career in a scientific field requires scientific knowledge. Learning said knowledge without a degree is hell, getting a job without one mis even worse. From my perspective the knowledge I'm gaining here in college, and a decent bit of what I gained in HS, is hardly useless.
That, and your philosophy is actually somewhat contradictory. You speak about "building your own life", yet you dropped of of HS because "you didn't like it". AKA WAAAAAAAAAAAAA I DON'T WANNA GO TO SCHOOL MOMIE! Sounds to me like you lack the very discipline and hard-work mentality you expound, and you've passed it on to your kids. You stuck to what you knew (you were raised poor) as opposed to exploring and learning something new. At least that's my impression from your posts.
That, and if your kids can't graduate from High School, one of the easiest things one can possibly do, they are either lazy, stupid, have a learning disability, or some combination of the above. Tell them to suck it in. At least having a GED will open up the option to go on to higher education should they choose to do so in the future.
Sorry to sound so critical, and your success is a great accomplishment, but saying that it's OK to drop out of school on the grounds that you have "the drive" is just ignorant, which is another thing that tends to come with a lack of education.
I'm not saying that college is the be-all-end-all, but if you have the oppurtunity and you don't take it, then you're just shooting yourself in the foot. You can learn just as much about life and have just as many experiences by going to college if you so desire, no foot shooting required.