Although, it is available to everyone, there are many countries in which it is considered illegal because of a few reasons. The legality of Bitcoin depends totally upon your location because there are no specified criteria for knowing if Bitcoin is legal or illegal. Since this crypto is not regulated by any central authority, you need to be careful while dealing with it. Unfortunately, Bitcoins are used by criminals to accomplish their evil goals. They use it to buy and sell drugs and weapons. Hence, you need to check out if Bitcoin is legal in your country or not before you start dealing with it.
Here is the list of Countries where you can use Bitcoin: