The fact is people around me doesn't know what bitcoin is.
Even well experienced and educated teacher also don't know what bitcoin is
and when they hear about it they think that is useless and so they don't care about it.
Yes, I agree with this one, that even experienced and educated persons do not know what is bitcoin.
So in my case what do people around me thinking about bitcoin? They know a little of it, because they heard it from that I am earning
using this currency