Source
Sorry, I meant to post the above .gif to you. It should give you a start in showing you what to encourage your children to study.
However....
It's one thing to be a newly minted college grad, and another to be out in the field for a while, and then be laid-off, like so many have been in the past several yaers.
Once you get experience + higher wages, it's very, very difficult to find a position that pays the same as the old one, if you can find one at all....