It is of course possible to go on working for as long as you like in some cases. However, most people will spend 20 years or more in retirement. In order to enjoy it by living a lifestyle that you desire, you require financial freedom; something the Age Pension is not likely to provide.
Recognising that super is so important, the Government requires your employer to contribute 9.25% of your salary into your super. But there is so much more you can do to make this basic contribution far more effective.