Leyonhjelm and his "look at me" enquiry

So the Bald One with interests in seriously minority views on anthropology, inaudible sounds,  climate change, compulsory voting and gun control is now wanting to hold an enquiry that will include the following topics in bold that the Commonwealth doesn't even legislate about?

So we'll be looking at the sale and service of alcohol, smoking and e-cigarettes, bicycle helmets I've already mentioned, classification of films and video games. That sort of stuff.

OK, the Commonwealth taxes alcohol, but AFAIK it doesn't legislate about opening hours and who it can be served to.   Bicycle helmets probably have a national standard, but that's it for the Commonwealth.

Even most smoking laws are State based, no?  

But anything to have an attempted "look at me" moment, hey?; pretty much like the way the Republicans call pointless committee meetings that invite that handful of climate change contrarian scientists to give evidence again and again each year while their actual reputation in mainstream science diminishes.