When parents have children in later life, the desperately-wanted baby is often the happy ending at the end of years of struggle.
But while having a baby is now possible well into your senior years, the offspring of older parents may not be happy with the arrangement.
"I hated having an old dad. I hated people thinking he was my granddad. I hated that he wasn't like anybody else," says 27 year old Eugenie Levine, whose father was 50 when she was born.
She's speaking with Insight's Jenny Brockie, as this week's show asks the question, how old is too old to have a child?
When Eugenie was 10, her 60 year old father got early onset dementia , and she says it was like having a grandfather in the house.
"I think when you're little it's just your dad and it's fine, it doesn't matter," she says.
"When you're five, six, seven, eight, nine, ten, there's some point where it switches and you go no, this is wrong. This is not how it's meant to be."
Eugenie felt "constantly embarrassed" as he became more and more disconnected from reality, and was a constant reminder that her dad was different to her school friends' dads.
"I've got this embarrassing old guy who's not quite granddad age but a clearly not father age being slightly a bit different, you know, because of the mental decline," she recalls.
"I had friends in high school being like, 'your dad is so weird, your dad's such a creep'."
As a teenager Eugenie made the decision to have kids early so that she could be a fun and active younger mother and she had her first child at 24.
According to the Guinness Book of Records, Ozzie Colley's father Les Colley was the oldest man to father a child when he welcomed his youngest son at 92.
Now 25, Ozzie has just a few memories of learning to ride a bike and kicking a football with his father, who passed away when he was just seven years old.
"I remember him being sick on the hospital bed sort of thing and I was just sort of colouring away in a little colouring book and stuff," Ozzie tells Insight.
It was the thought of losing her older father which scared Margaret Cannington to tears as child.
As a young girl Margaret never thought about the age of her dad, who was 53 when she was born, and they would laugh when people mistook her for her granddad.
But when she was about 11 or 12 she realised she could lose him "sooner rather than later".
"I used to try and work out where I'd be when I'd find out that he died and what he'd die of," Margaret says.
"I would say it was probably one of my worst fears as I was growing up. I'd cry myself to sleep some nights worrying about it."
She was 17 when her father died and she believes his passing "impacted greatly on the person I've become".
Now 36, she admits she judges older parents and questions whether their decision to have a child later in life takes into account what is best for the child.
"What's the impact going to be on the child?" she says.
"If they pass away, who's going to be around to look after them? I can only imagine what it must have been like having to be an active carer for someone.
"My head and my heart war with this one. In my head I go, 'I don't want to be judgy or whatever', but I especially judge the mums to be honest. If you're a mum having kids in your say 60s ... when I hear of people overseas going to efforts to get pregnant at that age, my heart reaction is very judgy that that's wrong and I don't like it."
