My wife is a doctor in mental health and she is never going to pay off her student debt. Partly because mental health is worse pay than physical health but also because the interest grows faster than a “solid” wage can pay off.
If a doctor can’t pay it off, what hope does anybody else have?
Whenever people ask me about their kids going to university and whether it’s worth it these days, I tell them that depends if they can accept they are effectively going to be taxed an additional marginal rate of 9% for their entire useful working life. Graduates earn something like 30-odd% more by their thirties on average - but that is skewed by people in business/finance. So for a lot of people it will still make sense, but there are many academic careers where this system is actually economically disincentivising people to go to university. The whole thing is a mess.
But the golden rule is never pay student loans off in full unless you are 100% certain you will pay it off in full eventually. Otherwise you’re just giving money away.