Bitcoin is usually used by people interested in technology. I mean, persons with a certain technical knowledge are interested in bitcoin.
My observations are that way. I think Bitcoin needs to reach larger quantities. Can use bitcoin in people who are not interested in technology?
Can people use the bitcoin in the profession group like tradesmen, teachers, housewives, firemen, butchers? Are we going to see the days that these people use bitcoin?
Of course Bitcoin can be used by anyone from anywhere. In fact one of the features of Bitcoin is Freedom of transaction without been regulated or taking into account the class you belong in the siociety.