Kendall Jenner has been a star on the reality TV show 'Keeping Up With The Kardashians' for many years, and now she is trying to establish herself a very successful modelling career, so how normal could her childhood have actually been?

Kendall Jenner
Jenner recently gave her thoughts on enjoying youth

The 19-year-old star, who was announced as the new face of Estée Lauder in November 2014, recently penned a very honest op-ed article in the Wall Street Journal about being brought up in the public eye, and shared her thoughts on youth.

"I feel like I grew up too fast a long time ago," she wrote in the publication that dubbed one of the six "luminaries."

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"Having older siblings, you grow up around adults, so you mature more quickly," the Kardashian sister continued. "I saw my sisters and parents working every day, so I was pretty much brought up to be a workaholic. But I just turned 19 a couple weeks ago, and I'm scared to be 20-it's the first step out of being a teenager."

However, Kendall did admit that when the time is right, she loves acting as childish as possible. "My sister Khloe always says to me and my younger sister, Kylie: You have your whole life to be an adult but only so long to be a kid. And we get it," she wrote. "In the right situations, I try to be as immature as I can sometimes-react to things as if I were 12. You can't take things too seriously."

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The aspiring model also contemplated what she would be like as an elderly lady, and at a similar age to her Olympian father Bruce Jenner, who is in his mid-60s. "I just laugh thinking about my dad being a teenager, partying," she said, "It's the funniest thing. And it makes me think-what am I going to be like when I'm 65?"