It used to be compulsory, but now it is voluntary. The advantage of moving an account is that you can get a new identity card after moving, and you can do it after moving. If you graduate, you can temporarily stay in the city where the school is located. When some units or companies recruit people, they are required to register in this city. At this time, the account will play a role. If a company recruits you, you can apply to become an official account in that city, otherwise you have to move back. Under normal circumstances, they will move back to their original place after graduation.