When I was 15 I did my school work experience with a piano tuner. I wanted to spend my time around music and pianos - and tuning sounded pretty cool to me. It was a family business - tuners and technicians, and a Yamaha dealership. I had a wonderful 2 weeks!
So... don't to be too quick to suggest that 14 year olds shouldn't strive toward being a tuner/technician. There is more to life than so-called financial success.
Other than my post about tuners, which, apparently there are definition misunderstandings, I have repeatedly stated my stance.
I feel hypocritical to say "Don't people read everything I write?" because obviously had I read everything from one post to another, I would have caught on that most people don't draw a line between tuners and technicians.
Ultimately, it's my fault for just jumping in and posting a one-liner. I typically don't do that. I'll be kind of content to put this issue to a rest.
If anybody is offended, I apologize. I certainly jumped the gun there.
On tuning pianos: When I was in grad school, a teacher arranged to have a short course (a morning or so) on tuning harpsichords. Students would register, and tune the one or two harpsichords we have at our school. I was too busy to attend, but a friend went, and he had lots of fun tuning the harpsichords once every little while.
Looking back, I really wish I had gone. Tuning harpsichords is clearly much simpler than tuning pianos, but it would have provided me with great insight.