Why do we need to use bitcoins, because we have a lot of reasons to do that. We have to admit that bitcoin is now popular not only in one country but almost in all of the countries in the world and because of that a lot of people are getting curious on what it is for so they are researching about it and use it later on and since a lot of people have been using it, it is being taken as an advantage of different companies. Those companies are using bitcoins as a mode of payment. Some of those companies are Casinos, online shoppings advertising sites.