As a parent, I think you should have confidence in your children. Now is not the time to think about work. Although employment is very important, it is difficult to find a good job because of the poor domestic environment, no background and no back door. And the environment is changing every day. No subject can guarantee 100% employment. It's hot today and unpopular tomorrow. Not popular today, it may be popular tomorrow.
So! Don't worry. Step by step.
In addition, I suggest you watch a video, www.tudou.com/programs/view/o_nAxHhSnlA/,, which is a philosophy lecture given by the Philosophy Department of China University of Political Science and Law. Questions similar to yours have answers. Maybe you will understand after reading the lecture on this subject.