It was not a fluke. It was just an indication that whatever her daughter would tell people to do, they would do. Over the next few months, whenever Kylie would announce on her Instagram that new products were coming, there would be more than 100,000 people waiting on her website for them to drop. Four years later, when Kylie was 21, Forbes put her on its cover and declared her the youngest “self-made” billionaire ever. Now every beauty guru on Instagram seems to have his or her own product line.