It would be a tough sell to convince people to invest heavily themselves in that path.
IMO they will have to look at providing full scholarships and stipends for people wanting to go down that path. Then retraining or alternative employment when getting out or full retirement pensions that kick at 40. I am not convinced the $20k py is going to swing it. There are better deals for PE teachers in Dubbo or nurses in broken hill.
The Mid-Career Transition to Teaching Program supports the best and brightest professionals to retrain as teachers of high-demand subject areas.
education.nsw.gov.au
If you train as a physics teacher, Technical studies or a math teacher, $30k scholarship. $30k on completion. And paid work while studying.
Schools are pretty much completely depleted of talent. Enrolments in Chemistry and Physics have been suffering horrendous slides in enrolment for decades. Students that do make it through are extremely weak in skills and knowledge and demotivated, they are worse than blank slates. Schools push students to generic STEM or senior science or away to safer subjects in the humanities which are easier to staff.
There is a huge STEM pipeline collapse underway, not just in Australia, in most nations including the UK and US. NSW government is flat out spending $20m to buy STEM teachers from overseas.
Universities aren't much better. Most doctorates are given to international students, who have had very weak undergraduate experiences, and with most universities having a policy of 100% graduation with international PhD students, supervisors end up writing thesis's. These same post docs are now unable to teach first year, or even high school level chemistry and physics. Many come from families where their parents were professors overseas and had basically inherited the title. They are attracted to positions supported by government where there is no pressure to actually demonstrate knowledge or produce anything. Many do fail basic literacy and numeracy tests, to become school teachers when their academic dreams fail.
Universities are businesses these days.
Nuclear physics tend to fall between Physics and Chemistry, inline with it essentially being forbidden in Australia. There is no business in running these types of courses. These are highly specialized skills and knowledge, not something you can pad out with a couple of feeder units in a business degree.
Even where it does exist, good luck getting students to pipeline in sufficient numbers. UNSW has low single digit enrolments (nearly all internationals) in its masters of nuclear engineering. The entire number of "physics" graduates annually, from all universities, in Australia is so small, you could fit the last 20 years of graduates onto a single side A4 page.
ANSTO has single digit positions as the "civilian employer" in the nuclear industry in Australia. Research funding has been extremely unpredictable in this space.
I wish ministers (shadow ministers as well) would go and talk to actual submariners currently serving about how they feel and the issues they face and why most can't wait to get out. And we want to attract quadruple the number and with more expertise?
We have had significant crewing issues with subs for more than 20 years. I'm not sure we have really address that issue.
I am suspicious that AUKUS may be about the UK and US absorbing our submarine capability rather than Australia developing its own robust sovereign SSN capabilities.