Setting a primary account on your PS5 is essential for accessing all the features and benefits that PlayStation has to offer. Your primary account is the one that you use to sign in to your PS5, and it is linked to your PlayStation Network (PSN) account. Once you have set a primary account, you can use it to download and play games, stream movies and TV shows, and access other online services.
There are several benefits to setting a primary account on your PS5. First, it allows you to share your games and other content with other users on your PS5. Second, it gives you access to exclusive content and discounts that are only available to primary account holders. Third, it allows you to keep your game progress and other data backed up to the cloud, so you can access it from any PS5 that you sign in to.