I note how many people seem to have totally overlooked that OP espouses the Australian model, which gives medical exemptions (though of course tricky if you have differing medical opinions -presumably you’d collar the one whose view you prefer and get them to sign asap - differences of opinion affect so few DC that it wouldn’t make any real difference).
Coming from a country with s different schedule doesn’t disbar you from schools/child benefit either, provided you have seen a doctor who will certify that your DC is on an approved catch up programme
Conscience is no longer a permissible grounds for exemption. Even for JWs who reject all medicine (and are so few in number they don’t really affect the herd either).
I am old enough to have predated measles vax- it was just rolling out when I caught the wild disease many years ago, until the 1970s or so, there would be epidemics every few years and children would die. I don’t remember any deaths, but I have friends around my age with impairments definitely caused by the disease.
I now have a very wonky immune system, and can never have a live vaccine again, i’ve had every dead one going though, even when i’m out of the age group.
And yes, I hope for good herd immunity. Because no-one regally knows how well I would cope with exposure to pathogens