least favorite thing bitcoin is the lack of marketing and public awareness it. due to with it is still believed by many be a geek thing, simple or people who are not in the web world much don't want to get into bitcoin world.
That's true majority of people are not aware about the bitcoins as it lacks promotion on international level and if it get good recognition then it can reach to many people and it will also attract them towards it.
I thought you could not be blamed for this bitcoin, bitcoin bitcoin decentralization certainly will not be able to do promotions against itself? they do not have a central office or the company itself?
so the actual sale is the duty of the user's own bitcoin