The whole point is changing it in such a way that everyone "wants" to do these in-demand jobs. Chinese students aren't unhappy with their job choices.

Edit:

I think the easiest way is to simply not force people to self-answer an abstract question of "What are you interested in?" First of all, it's almost impossible to answer it correctly because there is no way you can sample all possible career paths. Secondly, if they don't ask themselves this question, they'll find interesting things in the general job area they're given.