Try not to be a woman over 55 in Australia

Australian women over 55 are healthy but for income security, the position of older Australians is 67th out of 96 countries and worst of all for single women.

Given teaching is a female dominated profession, and not particularly well paid, you might be interested in some research.

See article here

The reasons why women in this age group are worse off are as you'd expect but solutions suggested might surprise you. The fastest growing age group generating entrepreneurs in Australia is 54-64. Research suggests instead of government funding focusing on young entrepreneurs only, that the benefits of this age group becoming self sufficient, rather than reskilled for another job, could be key. Read further here