What children copy.

When a parent asks how to manage their child's screen habits, the honest answer involves their own. That answer is hard to give, because it sounds like a telling-off, and a parent who feels blamed stops listening. So most of us soften it into "try to model good habits" and move on. The reason to give your staff the research below is that it lets them make the same point with weight behind it. Children copy what they see at home. We have measured this for other habits, and the numbers are not small.

Smoking

The clearest evidence comes from smoking, because it has been studied for decades. Children of parents who smoke are about twice as likely to take up smoking themselves. The US Surgeon General's 2012 report on youth tobacco use sets out the pattern, and a 2011 review by Leonardi-Bee, Jere and Britton in Thorax put a figure on it: parental smoking roughly doubles the odds that a child will start. The mechanism is not lectures. Children of smokers hear the same warnings as everyone else. What moves the number is the ordinary sight of a parent reaching for a cigarette, day after day, as a normal way to handle a normal moment.

Obesity

The same shape shows up in weight. Whitaker and colleagues, writing in the New England Journal of Medicine in 1997, found that having one parent with obesity gives a young child roughly a 40 per cent chance of obesity in adulthood, and two parents raises it to about 70 per cent. Genetics plays a part here in a way it does not with smoking, so this is not a pure modelling effect. The World Health Organization's guidance treats the family environment, the eating and activity patterns a child grows up inside, as a large part of the story. What a child sees as normal at the table tends to become their normal.

What this does and does not prove about screens

Here is where the argument needs care, and where your staff should be careful too. There is no equivalent decades-long study showing that a parent scrolling at dinner doubles a child's screen habit. The screen parallel is an analogy, not a proven causal finding, and it is worth saying so out loud. Overclaiming it will cost you credibility with the one parent in the room who reads the journals.

What the analogy does carry is the underlying mechanism, which is well established across both examples: children absorb the habits they see modelled as normal, more reliably than the rules they are told. A parent who keeps their own phone face-down at the table, who finishes a meal before checking a message, who reads a book where their child can see them, is teaching with the most powerful tool available, which is example. The smoking and obesity figures are there to show that this mechanism is real and measurable, not a piece of parenting folklore.

Children absorb the habits they watch at home more reliably than the rules they are told. That is the part the research settles.

What to ask parents to model

Keep the ask small and concrete, because "be a good role model" is too big to act on. Two specific habits do most of the work, and both are things a parent can start this evening.

When you brief staff, the framing that lands is collaborative rather than corrective. A parent is not being accused of harming their child. They are being shown that they already hold the most effective lever there is, and that using it costs nothing but attention. That is a message a parent can hear without flinching, which is the only kind worth sending.

Andy Perryer is the head of digital learning at a group of international schools and the creator of PICRAT Suite.