Well, I can't really comment on what "left" and "right" are in Australia, but the American right would probably be very much for confining the kids. Hell, if the kid's powers are outright dangerous, a lot of people would be for confining them. It'd go along with a religious cries of "devil children!" and such, with varying extremes. As for the left... well, if the kids really were dangerous I can't help but think they wouldn't have much objection either. In a situation like this, it's really easy to imagine what the right would do, but not so much the left. I mean, the extreme opposite reaction would be to let the kids free. But if they're dangerous, or have health problems, that's just not wise. And then it comes down to how much observation they require or how long they should be confined. And that situation is probably where you'll get your non straw manning.
Basically, from the information you've given me, it falls down to a public safety versus the children's (probably the family's as well) civil rights. And if their powers are useful, will they be forcefully conscripted into government work? Or will they be free to find out what they can do with it on their own? What happens if a high powered kid grows up and decides to blast their way out? What happens if a low powered kid they mostly ignored finds out as an adult a very effective way to use their power? There might be problems in dealing with them as an adult that didn't happen when dealing with them as a child.
For fun value, would these powers be useful in space exploration? Because superhero astronauts would be cool. And also a very good public promotion for Australia. But that's just a random thought I had.