Nicole Kidman at the press conference for her film Grace of Monaco at the Cannes Film Festival.

Nicole Kidman at the press conference for her film Grace of Monaco at the Cannes Film Festival. Photo: AFP

Karl Lagerfeld recently threw shade at women who choose to have plastic surgery, in an interview with German publication Zeit.

"Nothing makes you look older than attempting to look young,” the fashion designer told Zeit. “You can fool anyone, apart from the young,” said the designer, who also claimed never to hang out with people his own age.

The 80-year-old continued: “The worst are the lip operations. There are people who have it done and I don't recognise them afterwards. They look like they flew through the windscreen during a car accident and were patched up badly afterwards."

Jennifer Hawkins has been accused of having cosmetic surgery, but why does it matter?

Jennifer Hawkins has been accused of having cosmetic surgery, but why does it matter? Photo: Getty

While the Chanel designer is known for his often-inflammatory comments, he is not alone in his views on plastic surgery. Women love to judge other women. People watching is probably the most popular female sport, where strangers are judged on hair, makeup, clothes, shoes, accessories and general looks.

It’s no wonder, then, that when we spy a woman who obviously has had cosmetic work done, we jump on them with glee.

It’s a strange contradiction. On one hand, most women do the best they can to keep age at bay; clever makeup tricks, night creams and serums, face masks and super foods are just a few of the many ways women work to slow down the ageing process.

So why is it when someone decides to use something such as Botox, we point and scoff at their often clearly visible attempts to halt time?

Celebrities are the most susceptible to this type of ridicule, with magazines playing a large role, deriding celebrities on one hand for looking tired and frumpy, but once they've had some work done the claws come out.

Nicole Kidman has often been criticised for her use of Botox and her "frozen" features. At the Cannes Film Festival, the Daily Mail said her face was "oddly puffy", speculating she'd had injections of some sort. Hollywood Life called her "puffy" and "frozen", claiming it must have been a botched filler or Botox job.

Jennifer Hawkins is another about whom countless articles and tweets have speculated whether she’s had work done to her face. So often is she attacked that she felt the need to talk to the Australian Women's Weekly about it.

“When someone says ‘under the knife’ I don’t have a reaction. Everyone in the industry gets that," she told the magazine, in response to questions about whether she's had plastic surgery or not.

"That’s fine. I’m cool with that. I’m cool with people having an opinion, but, as I said, I am happy with who I am as a person and really just want to live my life. I can’t live my life around what other people say. They just don’t get me, that’s how I take it.”

While there’s no concrete data on the amount of cosmetic surgery being done in Australia, the Australian Society of Plastic Surgeons says it is certainly rising in popularity.

Some celebrities are completely honest about their plastic surgery; Jane Fonda is a particularly open fan of cosmetic procedures. She told Today's Matt Lauer she wanted to look more like how she felt. 

“I just decided I wanted to buy myself some time and look more like how I feel,” said the 76-year-old, who had work done on her neck, chin and eyes in 2011.

And who are we to judge someone for wanting to look how they feel?

Certainly when people take things too far, it can be hard not to judge. But if Kidman or Hawkins decide to get a little something to make themselves feel good, then good on them.