If I had had to pay loans, or had the threat of them over my head, i'd never have gone. I was the first person in my family to finish school, let alone go to university ( this was in 1989). I had a grant and worked two jobs throughout university to pay living costs. I was blown away by the opportunity and it allowed me to have ambition.
Years down the line, i've been teaching for (too) long. I won't be able to afford to send my own kids to university, and due to the devaluation of my wage i can't support them when they are there or indeed, save much towards it. But I am forever grateful for my opportunity and heartily regret that my children won't get one. I simply cannot recommend that they saddle themselves with huge debts and neither would they wish to. It's a real shame. My dd wants to be a midwife but the funding has been removed. My ds would love to study land management, but without sponsorship it's out of our league.
At least the tuition fees should be paid, and if we want teachers, nurses, paramedics, doctors, indeed, any public sector in the future then we shouldn't make getting into those sectors, which are not at the end of the day highly paid in the main, prohibitive for vast sectors of society.
And neither would I say that only "useful" degrees should be supported. For me, watching one of my students have the ability to leave his background ( which was awful and unsupportive) then decline that chance because of the complete lack of financial support was heartbreaking. He was truly an able student, who wanted to study PPE. Had a place at Oxford but declined because even with bursaries we found him, even with loans, he couldn't rely on the financial background of wealth to amass debt of that sort.
We can be shortsighted as a country. The teachers my age, who were trained "for free" are leaving. Nurses and doctors are leaving. It's a real crisis.