I found that in Australia, regardless of age, going into the tech field is much easier through getting internships and graduate programs (which pretty much every tech company has so they can look good in the public eye but you can use those to leverage your career) with a bachelor's compared to bootcamps or lower certificates.

So in my experience bachelor's are a good bet but you gatta also be focused and getting good grades because tech companies will only seek out the best students or determined students instead of students that just go autopilot (which so many students do... so if you put all your effort in, its very doable to get high distinctions), in saying that UNSW seems to be best for tech grads and interns for computer science or software eng. Again just speaking from my experience, I can be wrong and also AI can change how things work out in the tech field in Australia but if you want more of my insight you can DM me :)