I struggle with this with my step grandsons, aged 15 and 13.
No idea of current affairs, history, science. Know lots about football, particularly Bundesliga, but wouldn't consider learning German. Had no idea what a Caesarean is ( our dog just had one) or why it was named.
The middle one, older of the twins, is a brilliant engineer, yet his aspiration is limited to 'probably work at Westlands', the eldest wants to join the police, but has no idea what qualifications he will need, hasn't researched it and now his GCSEs are cancelled his aspiration is 'Yeovil College'. The youngest wants to be a chef.
None of them knows about countries overseas except 'Africa' and 'America'.
It's frightening.