Sorry, the 'you' in my post was referring to teachers, not 'you' OP or 'one' (general).
Teachers cannot choose when to take annual leave. They cannot reclaim sick pay etc. from holidays because it is (mostly) not included in their salary.
I think the OP gets that now though.
I bet you would be interested to read the terms and conditions of teachers in Australia? NSW teachers pay and conditions
Starting salary $59,706 - 34,485pounds, UK is 21588 pounds
Top of main scale $89,050 - 51433pounds, UK is 31552pounds,
Also this: "In addition to four weeks annual leave, there is no requirement for teachers to attend school during student vacation periods. Additional leave entitlements include leave without pay, parental leave, long service leave (after seven years service), carers leave and study leave, to name a few."
Of course, Australia is expensive. But the fact is, their teachers enjoy a much fairer deal in terms and conditions because they have strong unions. Teachers as a profession are supported by the population, and are so when strikes are needed.