Defence vs Benefits
Why not prioritise tackling this waste and efficiency before demanding benefit cuts?
The Global Arms Industry is notoriously corrupt with well detailed links between Public/Private sectors and yet the argument seems to have been largely ceded by my fellow lefty, woke, snowflakes already without, erm, a shot being fired.
A big GIRFUY to the Armchair Generals of this country and remember the next World War will be fought by the U-16s currently devising workarounds to stay on social media - I thang you!.
It's not really down to how tech savvy, it's more with being parent/child savvy.
Top many parents use tech as a babysitter while the dangers are very real.
Kids even younger than the numbers you posted above are allowed to run free on devices with no restrictions.
There's many straight forward solutions ranging from so simply removing certain apps to putting controls on what kids can access and, probably more important, restricting the time they can use devices.
There's lots of information for parents on, wait for it, the internet.
It's too easy to say it's not easy.