Why you use bitcoin? First of all, it is not necessary to use it, if you want to earn money than sure you need to use bitcoin. But in bitcoin we have a lot of choice to use it and to earn it in a different ways. Because bitcoin has a great character on online world. In short, i will telling you, bitcoin is only made for online people, if you are also doing work on online world than sure you know the benefits of bitcoin.
Just because of its virtual presence without any physical form people feel same as the above mate that bitcoin is mainly for people who are active on online activities. I never believe in that, because what people get from bitcoin offline usage is same as that one get from online. There is no difference in value, only the change is felt upon the earning possibilities which is available much online.