Assuming you accept the idea of fee-paying education in the first place, and that you aren't either minted or funded by someone else / eligible for a bursary, when considering the affordability of fees, ask:
1. Was there was an unused 22k (or thereabouts) after tax hanging around as discretionary income the previous year?
2. Is there enough additional discretionary money available to cover compound inflation at 5-7% every year plus trips, extra curriculars, textbooks, etc.?
3. Could you sustain all of that without blinking for up to 7 years no matter what and still tackle university fees?
If you blink, I think fee-paying is the wrong answer.
We're certainly not minted (I wish we were, though) but have managed to pay full fees for the last few years - with some blinking going on at times.
It's a question of personal choice/priorities between holidays abroad etc. and school fees. This is not a discussion I was intending to have, though; my question was simply about if there was an affordable insurance scheme to cover an eventuality of a temporary reduction in family income, as no-one can be sure of anything these days.