I started my first project, Asturix, a Linux distribution, at age 12. I have found all kind of complications, most of them related with being young.
I live in Spain, where there are a lot of prejudices against youth. Also, the educational system here doesn't empower any "21 century" value such as creativity or inspiration. Fortunately, the situation is changing thanks to the media and other young entrepreneurs and I are starting to be famous in Spain.
On the other hand, working and studying in Spain at the same time is really, really, really hard. Oh, and we have a youth unemployment rate of 54%.
Right now I'm 17 and have founded a couple companies, what has been really hard due to legal issues - creating a company in Spain being underage is practically illegal.
I have also started an incubator for hackers from 12 to 18 so they can create their projects in a easier way.
This is a beautiful age for discovering your passion, but if people screw you out it can be a difficult one.
The talent is there, but we have to let it grow.