Has it not occured to them...
That maybe only seven percent of people are QUALIFIED to be considered professionals in anything at that age?
I was lucky enough to be started on my IT career at the age of 6 programming my own games on the ZX Spectrum (a fairly hefty tome full of BASIC-coded games was my first tutor), which gave me a slight headstart.
Most people getting into IT now seem to start the proper work at college or university. Before that, IT lessons consist of "How to use Word" and "Spreadsheets for Beginners". The extra-curriculur computer activity is almost non-existent.
If you want younger experts, you need to teach them better skills from an earlier age. When I went through the GCSE IT programme if I hadn't had my previous experience, I would have been put off completely. Most of my classmates were. From a class of 30, I am the only one with a career in IT.