In 2014, the World Health Organisation declared that Australia had achieved elimination status for Measles.
There are a few stories around that we've recently been experiencing some potentially harmful outbreaks.
"Measles is a serious disease and can cause severe disease or death. It's caused by the measles virus and can also lead to complications, such as lung infection (pneumonia), middle ear infection (otitis media) and brain inflammation (encephalitis)."
"In Australia, measles vaccination is 99% effective at preventing infection by the measles virus after 2 doses."
https://www.healthdirect.gov.au/amp/article/measles
https://www.healthdirect.gov.au/amp/article/measles#prevente…
For something that is optional for most people these days, it sounds to me like it'd be a good thing to avoid if you could.
On the bright side, 90%+ Aussies agree with you.
While there are some unhinged American sites saying people didn’t have hygiene before the measles vaccine, and that is the difference, almost anyone can look at the stats and see how incredibly effective the vaccine is.