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.
I think it is better if you will not be using bitcoin since you said that the government forbids the use of bitcoin, it other words, they banned it in your country.
People sell their bitcoins because they need money or they want to get their profits out of their saved bitcoin.