Trish Symons laughs when asked if she's the oldest delivery driver she knows.

"There's a fella from my church; he's 81," she said.

"Eighty-one and he's DoorDash-ing. I used to see him at Woolies and we'd have a joke."

Ms Symons retired from financial planning about three years ago and was relying on the age pension for an income.

But as a renting divorcée with four children and 11 grandchildren, it was hard to make ends meet.

The maximum pension payment the 73-year-old could get amounted to about $675 a week.

"When you take your rent out of that, the noodles are looking good [but] I don't want to eat noodles," she said.

Being a driver paid per job to deliver groceries, alcohol, takeaway meals and pharmacy items gave her the lifestyle she wanted in her retirement, Ms Symons said.

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