However, last night 14-year-old Kylie Jenner decided to ignore her tender age and go all out in a silver sequinned number for the launch of Kardashian Khaos in Las Vegas.
The pretty brunette teamed the sophisticated dress with a pair of vertiginous Christian Louboutin heels, similar to the styles previously sported by her older sisters.
10 years older: Kylie Jenner looked much older than her 14 years last night as she attended the launch of the Kardashian Khaos store in Las Vegas wearing a Hervé Léger bandage dress
Meeting and greeting: Teenager Kylie looked more than confident as she arrived for the opening of the store at the Mirage CasinoKylie, who is dating teen singer Cody Simpson, left her long hair loose around her shoulders, and wore minimal make-up as she posed for photographers at the event.
While Kylie's older sister Kendall, 16, has come under fire in the past for dressing older than her years, it's the first time Kylie, the youngest of the Kardashian/Jenner clan, has faced such criticism.
But the girls are soon to face the same level of fame as their older sisters, Kim, Kourtney and Khloe, after it was announced the duo will soon be getting their own reality show.
Getting used to the spotlight: Kylie will soon be experiencing the same level of fame as her older sibling after landing a spin-off reality show with her sister Kendall
Famous family: While Kylie wore her bandage dress, Kendall went for something more understated in a navy minidress and taupe heels
Bonnie Hammer said the network is looking at making shows featuring mum Kris Jenner's two daughters with husband Bruce.
She said of the series: 'I think it will have its own life expectancy and we'll just go along with it and help hone what's right for E! and what's not right for E! as we develop a whole other world.'
Excited: Kylie and Kendall spent time meeting and greeting their fans outside the event before heading inside
Fan love: Teenage reality stars Kendall and Kylie took the fan adoration in their stride
Model pose: Kendall and Kylie posed for photographs by their pictures which are posted on the outside of the new store
In a recent interview, Kendall told Teen Prom that she used to be nervous when she first began to appear on her family's reality TV shows but that she and her sister now consider it 'normal'.
She said: 'I used to be really shy around the cameras when we started filming. But I think Kylie and I are both used to it now. It’s normal for us.'