The truth is that the anticipation for crypto to go mainstream increases as time goes on. In fact there are skeptis who would have nothing to do with crypto unless it goes mainstream. Is 2018 that year when blockchain crypto goes mainstream?
Bitcoin will eventually go mainstream in the near future but I believe not in this year 2018. But this year shows a great progress that bitcoin is started to be accepted in different countries across the globe. Here in my country, bitcoin is now accepted as payments for bills or any services in selected merchants and in some countries, they can use bitcoin to buy foods and other goodies. It is a very good sign, we are definitely goin there.