But that is all one can do ONCE a student has decided on a particular path. Once he or she has decided to major in something, a responsible advisor will not only give advice on what the student should do to accomplish his/her goals, but also to open his/her eyes to the possibility that (i) employment is not guaranteed and (ii) the student should consider doing this-and-this
just in case..., to increase his/her chance of getting employment elsewhere and in other fields.
My philosophy in all of this is that a student need so go into a field of study with his/her eyes wide open. This means that he/she should not only be aware of the requirements of that field, but also the chances of employment IN that field. If this is known, and if the student still want to take the chance, then at least the student is making a decision based on the available information and not based on ignorance. At least, this student will be more open to expanding his/her horizon on the possibility that he/she might not get an easy employment in the chosen field.
Every decision that we make along the way in life is a calculated risk, and nothing is ever guaranteed.
Edit: BTW, this coincide with the
10th anniversary of Peter Woit's devasting criticism of String Theory in his book "Not Even Wrong". Anyone enamored and wanting to go into this field should read this book first.
Zz.