Yeah maybe most bitcoin users are in middle class society. Many of them become workers in bitcoin certainly to benefit. But I'm sure there are some upscale people who might be investing in bitcoin. But I think a lot of their lower class people use bitcoin for the main job #imo
That is not entirely true,the price of bitcoin is over two thousand dollars is because there are huge investments in bitcoin,may be people who are trying to earn bits are mainly students ,if you have a internet connection you are able to use bitcoin,no matter what your social status is.