I would suggest that they do IT courses so that they are computer savvy, that they learn a few languages, that they are prepared to do any work that coms their way.
I would tell them that there is pride in self sufficiency (through any opportunities at any level of work in any 'business' that comes their way).
I would tell them to be versatile, keep an open mind.
Being informed (through the internet or by reading) is most important.
Going on courses to update their expertise is very useful.
Making and keeping in touch with friends and contacts is esssential.
Enjoy what they are good at but not depend on the expertise as a way to make a living, necessarily. (Keep that mind open).
One door shuts and a bigger door opens.
Do not be afraid.
Just go for it, wherever it is.