When I was 14 my father was learning to fly and I went up with him during one of his lessons (AA5).
Decided then and there that I had to learn and within 7 weeks of my 17th birthday I had my licence. It was at that point that I decided I had better learn to drive too!
I've never aspired to being a commercial pilot, my flying will always remain my "escape" and I have never come back from a flight yet without that feeling of total contentment.