The amount it costs to go to Uni, will put young people off, that means either fees go up... or more likely the Uni shuts down... how is that helping the UK? its one of the few areas we used to be world class in.
We already have massive skills shortages, do you want more and then more immigration? with corresponding higher unemployment? and an even lower skilled economy?
Its £250 billion over close to 30 years, its a totally unsustainable model... most of this debt will be written off, with students just paying interest... pre 2023, just 30% will pay of their loan, post 2023, 52%.....
If France can send 34% of its students to Uni for low tuition fee's, why can't the UK ?
My point on a higher earner is, if they cannot pay back the loan, then that does prove it needs change...
On NHS specifically, one day you'll need their care, either in NHS or in a Private Hospital... you wont be happy if no one is available.