My mother and her mother were both age pensioners and neither of them had, or needed, any further income than that provided by the government.
It is my understanding that an age pension as small as $5 a fortnight entitles the pensioner to some worthwhile discounts, some of which are also available to holders of the Seniors Health Card. Some pensioners with a full pension (and I have met many) are terrified of losing ANY of their pension as a matter of principle.
The principle stinks! If you lose $5 a fortnight because of the receipt of other income why complain about being $5 a fortnight better off?
Those who complain must have missed a few classes of arithmetic at primary school.