We live in the EU outside the UK.
DD was born in the UK, I'm English, DD and has duel citizenship. She hasn't lived in the UK since she was a baby.
DD has been educated in the state system in our non UK country since she was 3. She's currently in the equivalent of year 10 (as in the year before the GCSE equivalents).
She's desperate to go to the UK for 6th form. Staying with family isn't practical (my parents are elderly and live very rurally).
She's eligible for a state boarding school place (parents pay boarding fees of about £10,000 per year, so fairly expensive but far cheaper than a private boarding school).
We can afford this but its not peanuts to us, it's a hefty hit and because there's also be multiple flights per year and other expenses would either mean using savings or cutting out things like family holidays - she's not an only child so cutting holidays would be rather unfair...)
She's currently very, very keen on the idea. She's only been away from home on school trips of maximum 10 days up to now.
There are perfectly good options (equivalent of a grammar school sixth form and a sixth form college) locally to where we live, but she wants to live in the UK...
Would you let your DD board overseas in this situation (1.5 hours flight away). Moving with her isn't an option - two younger children in local schools, work etc.
She'll be only just 16 when she starts sixth form.