This is pretty pathetic:
...and wearing a helmet will now be compulsory for (foot-propelled) scooter riders.
Few people would be insane enough to use a foot-propelled scooter on a busy road (in which case, it would be fair to make that illegal instead), and there's really very little reason to wear a helmet when using a scooter on a bicycle path or footpath. I can go much faster - with far less control - on my rollerblades, and I'm not required to wear a helmet when using those.
The only reason I can see why the Victorian Government would want to create such a law would be to discourage people from using scooters at all. Given their obsession with cars and roads, I can't say I'm very surprised.