I didn't finish high school when I was a teenager. But that didnt' stop me from successfully completing a degree and postgraduate program. It did make it more difficult to get into courses, especially in the old days where you had to prove you would be likely to be successful in tertiary studies. Luckily I had a sympathetic assessor and I was allowed into a course that started off about 15 years of barely stopping study.

Now I am still stoopid, but edumacated.