They can do whatever their heart desires, just don't force me to do these things in school and college.
Then don't force aspiring humanists to learn maths beyond the bare, everyday essentials. If I remember correctly, in my school, everyday-life maths was only available in grade eleven. Do you see the problem with this kind of thinking? It's limiting.
'Let's pick apart this author's book and come up with totally subjective remarks about it that can be bent into sounding way more profound than it was meant to be. Now let's debate over our subjective interpretations of another man/woman's writing!' I find it ridiculous people make this into a PhD venture.
I have a few problems with this. One, I think it promotes shallow thought. How are we supposed to know what's profound or not without thinking deeply about it? Do we have some sort of direct access to the author's mind? Two, you're making debate sound ridiculous. Debate teaches us to form and utter our own thoughts coherently and to process foreign thoughts. I don't see how debate about anything can be considered entirely useless.
As for your final point, the farther one takes a practice, the better one gets at it. Just as in science, you get better as you progress in your study. Given that I believe that the skills acquired in humanistic studies are useful, they would only get better, as the environment provided by graduate school is generally more demanding.
If he/she wants to spend his/her life writing essays about interpretations of other people's works then he/she can do just that; like I said people can pursue whatever it is they love, it doesn't matter to me. But don't tell me this is a job that carries the state of society on its shoulders. You're literally dedicating your studies to looking at writings of others and coming up with extremely subjective remarks regarding what certain things in the specific book mean. I see little to no purpose in making this a career. What you stated would be nice if it could happen; the if's are few and far apart.
First off, I was thinking more of the student becoming a fiction writer than an essayist. Secondly, I call upon the old aphorism "Know thyself". If biology and anthropology are simply too stale a for a person, I see a great deal of use in the knowledge of humanity provided by writers and learning how to enhance the understanding of that wisdom through critical analysis, and good teaching helps to improve those skills. The whole point of creating characters is to represent
human character, but I think that goes without saying. Moreover, I think it also goes without saying that knowledge of yourself and those around you is eternally important. Not everybody is smart enough to understand human character the way, say, Shakespeare did, without assistance.