11 Why is it that everybody wants to help me whenever I need someone's help? Why does everybody want to help me whenever I need someone's help? Can you please explain to me the difference in meaning between these two questions?

Understanding the Context

I don't see it. 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.

Key Insights

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 the voiced /z/ won out over the voiceless /s/ is not clear to me. Modern French mostly uses /gz/, as in xénophobie, but I don't know the history of how the modern French pronunciation of word-initial x became established.

Final Thoughts

Why don't you give me that book? Why don't you go to the store and get some more milk? Why don't you make me a sandwich? In these examples, the speaker is clearly not asking for the reason the listener is not doing the action in question. What is the origin of "Why don't you..." as a suggestion or command? Why have a letter in a word when it’s silent in pronunciation, like the b in debt?

Can anyone please clarify my uncertainty here?