Why should, asks what you think are aspects or POTENTIAL aspects of the career that would cause a young professional to desire it. If this was a conversation as to how to increase the number of people in the field the answer could include aspects that do not currently exist. While the aspect could exist in potential, it would have to be real.

Understanding the Context

Why is a just a rather odd wh -word. Its distribution is very limited -- it can only have the word reason as its antecedent, and since it's never the subject it's always deletable. Consequently it behaves strangely, as you and others point out. Why have a letter in a word when itโ€™s silent in pronunciation, like the b in debt?

Key Insights

Can anyone please clarify my uncertainty here?