Popular maybe in that it had more supporters than the Voice.
But it's does also have a sizable number of people who are concerned, especially if you step outside the Daily Telegraph/Herald Sun crowd. Some of the concerns about how this was rammed through parliament in a single day, with 1 hour of senate committee oversight that igored everyone.
Firstly, I am in the camp that even the busiest parents won't give children cars and say "you can drive unsupervised but only on the main roads" then put in photo-ID checks at all the side streets to make sure only adults enter. Why not "dumb phones to 16"?
Secondly I believe that this is false safety for lazy parents. The kid will still be blasted by toxic algorithms when they hit 16, except now without resiliance. Wouldn't a safer way have been the harder path, making Zuck and Musk and the rest behave better? If something goes wrong and the kid bypassing the ban gets into trouble, this then makes them less likely to ask a trusted adult for help.
It is a game of whack-a-mole, already U16s are moving to other platforms.
The scope creep is quite concerning too, with some platforms being added barely a week out, and we know as Inman-Grant and Wells have both said that search engines and more are in the aim in tranche 2.
The videos, and posts, and other toxic stuff is still there, still readable, but only to people who don't sign in. Where there were parental controls for those who cared to raise their children and not have Albo, Inman-Grant, and Wells do it, they now have nothing.
This was rushed legislation, this is open-ended legislation, this is bad legislation.