How to buy Bitcoin (BTC) in Australia?

Inquiring minds want to know: How does one navigate the often-complex world of cryptocurrency purchases, specifically in the context of Australia? With Bitcoin (BTC) being one of the most popular digital currencies, understanding the steps involved in acquiring it locally is crucial. Could you elaborate on the various methods available to Australian investors looking to enter the Bitcoin market? Are there any specific exchanges or platforms that you recommend for their ease of use and security measures? Additionally, what are some of the key considerations one should take into account before making their first Bitcoin purchase, such as wallet selection, transaction fees, and potential risks?