That commonality is also met with opposition to some forms of gambling by social health advocates as well as competing interests in some sectors. Threads that bind the six states and ten territories is a high level of participation in gambling and betting activities. The Commonwealth of Australia is a diverse land in many ways from the largest metro area, Sydney with over 5 million people, to Tasmania and other smaller islands. Online casinos accepting players from Australia Betting on sports futures, props and lay bets.