I fear we will have to differ as regards ‘books, theatre, TV, film’ being dominated by people who can afford to repay their student loans.
Well, we can differ in our opinions, but as I am talking about what would happen if entry to courses that lead to Arts-based careers being restricted to those who can fund them themselves it is impossible to know one way or the other, particularly as the figures that are collected only measure the percentage employed in a related discipline. Who do you think employs poets? Or Art Historians? The vast majority of them won't show in the figures, as they will be working in the civil service, doing a PGCE, on a management training scheme or taking conversion courses. The best ones - the ones who do get work as poets in residence or in galleries will most likely be interns working for next to nothing. We can also differ over whether loan payback is the most sensible metric for deciding on the value of a course of study anyway. I would be far more interested in seeing the figures ten years after graduating, when many graduates working in the creative industries are earning well.
The majority of the books I read are written by academics; advances are paid by publishers.
The majority of books I read are written by a huge variety of authors. For work, I read textbooks by academics, but for pleasure I read novels, poetry and short stories. What does any of that prove? 🤷♂️
Good actors, presenters and the like will be well paid. Why should the taxpayer subsidise the mediocre?
Not all good actors (or any other artists) will ever be discovered. never mind well-paid. A lot comes down to luck, and having the money and connections to be able to work in a job that will allow you to drop shifts to perform when you get the chance. If you are Eddie Redmayne, or Benedict Cumberbatch (both very good actors - I'm not suggesting otherwise) that's a lot easier than if you are Joe Bloggs from Normaltown. A friend of mine's daughter is an opera singer, with an MA in music. She works as a waitress, or stacking shelves, as the work is sporadic and although she has been asked to teach music she can't commit to a term in case a role comes up and she needs to travel. When she earns, she is well paid, but the nature of the work is such that when surveyed she appears to be unemployed or in an unrelated 'non-graduate' role.
The taxpayer isn't asked to subsidise the mediocre. As we've seen, most graduates pay their loans, and there will be graduates from all disciplines who do not. How certain are you that all science grads, or those with Business degrees pay them back? Some will travel, others will marry, some will 'drop out', or join the circus. Do you have stats to back up your assumption that it is creatives who don't pay them back, or is it based on prejudice?
As for artists, you either have talent or you don’t - it can’t be taught.
Do you have evidence for that claim either? Many students, graduates and professors would disagree with you. Anyway, it's not just about talent, it's about knowing how to go about getting into the public eye, applying for grants, building a social media presence, winning prizes and so on. Those things can absolutely be taught, and form a large part of creative arts degrees.