Indeed, we fear the urgent race for social engineering street cred between Labor and the Greens has only just begun.

And possibly includes the Liberals and independents, some of whom see themselves as our moral guardians.

Consider the Premier's parliamentary secretary Guy Barnett and his hardline "fat tax" stance on what he considers unhealthy food and drink in schools and workplaces.

Oh yes, and independent MLC Ivan Dean's bizarre bid to stop anyone born after 2000 from lighting up a gasper.

Based on politicians' perception they know what is good for us.

What would they know?

Most politicians have had no specific training in the field.

But first to state Labor which last week decided that something had to be done to stop not just the high tide of fizzy cordials flooding through our schools but the mountains of greasy tucker little tackers are cramming into their swollen cheeks.

Gracious, much more of this fast food and drinks and our offspring will be the size of the Michelin person and spring off into outer space.

This, my fellow responsible parents, as one may predict, (sound of trumpets optional), calls for "government action."

Or, and if this scare campaign will swing even more punters' votes, "STRONG government action".

It has taken tardy Labor a while to realise that it's getting a little behind in the banning business.

Let's face it, the Greens have impressive form here, finger-wagging on a wide spectrum of issues and truly establishing the template for telling the other fellow how to live.

Much of this is based on the environmental movement's Puritanism or, as American pundit H. L. Mencken put it: "the fear that someone out there may be enjoying themselves".

This includes, under the pretext of saving the planet, telling us to walk rather than drive, take shorter showers, don a jumper indoors rather than turn on dam-powered heat and ensure that the television set is nightly turned off at the mains so that polar bears don't drown owing to rising sea levels.

No, we don't see the connection there either but that's not the point as we collectively head towards the Greens-led grim utopia where, eventually, we all relax in our grass huts and chew mung beans.

Greensters have had some success in this area with bans on supermarket-free plastic bags, which is why you see confused old farts exiting gaudy halls of commerce juggling six cans of dog food because they don't want to buy a 35c bag.

"What is wrong with the old plastic bags, I curse the name of Nick McKim," recently snarled a chronologically-challenged person to your correspondent.

In its race for health credentials over the Greens, Labor health spokeswoman Rebecca White reckoned that fizzy drinks were leading to obesity and, somewhat like the Duke of Windsor after visiting 1930s Depression-era Wales "something must be done".

Thank goodness for Health Minister Michael Ferguson who described mooted bans as "nanny statism at its worst".

While we're on politics, and sensible eating, we did like Cassy O'Connor's nominated ideal candidate to replace Kim Booth, who recently suddenly liberated himself from any parliamentary role plus the Greens' state leadership.

Ms O'Connor reckoned her ideal person to fill Kimbo's shoes would be a "strong Green woman".

Now, girls, that's how you will look if you eat your kale.

Sort of bulky with a green sheen.

For some reason we keep thinking of the Incredible Hulk.