The former Victoria's Secret Angel is not impressed with models who are making a name for themselves via Instagram and Twitter, claiming it is "dangerous".
She told Net A Porter's The Edit: "When I started modeling there was no social media, I didn't come from a rich family and I didn't date anyone famous-my work spoke for me. I'm glad, because I learned discipline, dedication and patience, and it kept me grounded.
"Now you can be famous so easily and it's dangerous, it can mess with your head. People are coming from left and right with two million followers and, whether they say they're a model or a stylist, they've never trained, never worked with anybody, never sacrificed anything.
"They're taking work from people who gave up their time and energy to learn their craft.
I'm not judging, but who's going to have the longevity? You might be cool right now, but how long will it last? Are people going to get tired of you?"
Karolina, 31, also admitted she is surprised at her own longevity in the industry and can't believe she is still in demand.
She said: "I'm amazed I'm still around; we live in such a fast-paced world and get over everything so quickly. I don't allow myself to compete with the new girls-what good is thinking like that? When you're older, you're more confident and comfortable. And there's something to be said about being seasoned, rather than being very new and raw and now knowing what you're doing."
- BANG! Showbiz