@OchonAgusOchonO
Some arts courses would be all he would get in a university
I think I know what you're trying to say & the rest of your post makes sense, but I need to take issue with this!
'All he would get' is a pejorative way to put it. Many Arts degrees are at c300 points this year, and yes, that's quite low, but as you know, the points system is a 'supply & demand' arrangement, so there's many Arts places, less applicants with lower points overall, than usual, hence 300 points.
However, academically, it's as rigorous as any other course, the points are not indicative of the academic content & level required.
OP if your nephew does get an offer on an Arts course, and is interested in studying certain subjects, that's great. As has been said, after a BA he can do a teaching postgrad, if that's what he wants.
It's key that he does actually want to study those subjects tho, or else he