I did not introduce bitcoin to them, some of them had an idea about it. They asked me because of my course; they know that I had an idea about bitcoin. They seem to be interested because of the fact that they can earn big through it. They are asking if it's true and not just a scam and all, so I said it's all true and did some explanation to them.
You know, when it's all about earning big money, they're interested not knowing the effort, patience, time, and hard work you have to put to earn; they think it's just easy.