Psychologist Candice Odgers has studied adolescent mental health for 25 years. She fears the current debate around smartphones obscures some of the biggest issues facing teenagers – from the impact of Covid to the health of their adult caregivers

The quickest way to make being online safer for children and teens would be to kick all adult men off the internet, the Canadian psychologist Candice Odgers believes. Men are the biggest perpetrators of sextortion and most likely to spread misinformation, she says.

Odgers is not recommending this as a policy for governments to adopt: “That would be crazy, right? It would be unfair.” But she is on a drive to puncture the prevailing narrative that the best way to address online harms is a social media ban for teenagers.

All the young people the Guardian spoke to disagreed with aspects of the government’s proposed block

Sixteen- and 17-year-olds in Britain are to be encouraged to observe a midnight to 6am social media curfew but will be able to opt out by changing their account settings.

From next spring, they will be urged to refrain from using certain apps, with the block being switched on by default. But the curfew will not be mandatory and can be overridden.

As imaging tools become more sophisticated, online predators are using images of children to make extreme pornography

• UK parents warned over posting images of children amid AI sexual abuse fears

The two photos started out as typical teenage selfies: looking into the mirror, fully clothed. But once online predators had got hold of those pictures and ran them through an AI imaging tool, they had become the basis for extreme pornography videos.

These examples come from the Report Remove service, which allows children who have had explicit pictures of themselves distributed without their consent to flag the image confidentially and have it blocked or taken down from social media. Due to breakthroughs in AI, and the wide availability of AI models and nudification apps, some under-18s are becoming victims without even being in contact with criminals.