Worldwide, especially in my place, must sell it for profit rather than always keep it!
The government always forbids the use and play bitcoin so that it can not grow fully potential in my place. Surely it remains an advantage if there is a transaction rotation for bitcoin in my country to live.
Since ideally, bitcoin is a form of investment, some people rely their on it as a source passive income. In that case we might say that people who sell bitcoins really need money. It is also possible that they already reached their desired profit that's why they already decided to sell it so that they can use the money in another form of investment. Right now, most people sell their bitcoin because they panic due to the speculations about bitcoin around the social media.