Many parents won't need data to tell them the government's social media ban for under-16s isn't working as it was meant to. They've had a crossed-arms teenager in their loungeroom telling them just that.
The ban is now six months old. According to recent government data, more than 5 million accounts belonging to teenagers have been removed or restricted by the social media platforms. Yet, the same data shows more than seven in 10 parents say their child still has one or more active accounts.
Peer pressure is and always has been a powerful force felt by teenagers.
But throughout the social media age - and particularly in this fragile, frontier time of a world-first ban - it is being weaponised against parents.
Safety may be why many parents put a smartphone into their kid's hands to start with. But it was peer pressure and fear of social isolation that led many to give in to their child's pleas join social media.
That same fear of being left out is being used by teenagers to convince their parents to let them defy the ban, despite all the evidence of the damage being done to their generation's mental health. If no one else is missing out, why should they?
No one wants their child to be socially isolated. No one wants their child to feel the pangs of injustice or missing out. The emotions of a teen who had social media access and is now denied it are real and hard for a parent to ignore.
But no one should want their child and their precious teenage years preyed upon by the rapacious masters of Silicon Valley.
No one should want them to have hundreds of pointless notifications all day and night, or have their physical location trackable by "friends" they have literally never met.
In recent weeks, US news reporting has revealed how Meta, Snapchat and TikTok have cynically forced their way into classrooms, incentivising children to use their phones during school hours.
Meta paid teenagers to promote Instagram to their peers, while leaked Snapchat strategy documents referred to "under-the-desk time" as a key target in their quest for market share. (Of all the popular social media apps, Snapchat seems deliberately designed to steal the attention of children.)
The platforms have proved they cannot be trusted to police themselves, any more than the scorpion can be trusted to take the frog across the river.
This is why Australia went it alone with its social media ban last December. This week the Prime Minister gave his government a pat on the back by revealing Apple had told him its new phone safety features were inspired by our ban.
Yet it is not working how it was intended. While it was always going to need the support of parents, it is proving too easily circumvented. Too many kids simply have slipped the companies' flimsy nets.
While some say we should give up trying to get social media-addicted teens off the platforms and focus instead on stopping the next cohort joining, that defeatist attitude can't prevail.
The platforms should not be let off the hook. But parents still need to parent. They need to back the expert advice that says getting young people off social media is about the best thing that could be done for them.
They should talk to other parents as well, to find out where they stand - and perhaps be comforted that they're not going it alone.
Peer pressure shouldn't only be a force for kids to combat. It could and should be a force for good among the people entrusted with raising them.
