The girls my age and where I live arent as mature as older women (Australia).

But somehow you are as mature as someone in their 30s?

ll they want to do every weekend is go clubbing or partying EVERY WEEKEND ALL YEAR. Most don't care about their career. In fact every girl i meet thats my age doesnt even have a car or job.

I have quite a few friends in Australia and most of them definitely had their life more or less figured out in their mid 20s.

My question is should I date an older woman or just stay single. I just don't want them to desire to have kids with me or marry me after a year or two.

The issue here often is that at 23, a large age gap comes with a different life stage and timeline. Do you want kids? If so, when? If you plan on dating someone in their early/mid 30s, you should be ready to discuss marriage and kids quite a bit earlier than if you were dating someone closer to your age.

I just don't want them to desire to have kids with me or marry me after a year or two.

Then date people your age.