i honestly can not think of anybody who does not benefit from bitcoin! even banks that some people say are against bitcoin or bitcoin is against them are happy about bitcoin. not only bitcoin introduced blockchain technology to them to improve their business but also it has opened up new ways for banks to make money. banks are in fact making a lot of money because of bitcoin, all these traders are using banks to handle their money transfers and there are lots of them
Well that's one kind of people. There are others who don't since they are afraid to try new things especially the old ones nowadays since the impact of the news they heard in TV.
peoples are against BTC becuase of its high rates some people can not buy BTCs and also china banned BTC in their country for some time thats why some people are against BTC.