Changing accounts on PS4

Hello everyone, I hope this is the right place to put this question.

I am a current player, I own both ARR and HW on PC and PS4 and currently play on both platforms (one account). My son would like to start playing the game, and I would like to be able to play with him so a new account is necessary. I'm wondering how I can take my SE account off the PS4 version and add a new account to it so he can play on PS4 (and me on PC).

Is it possible? I cant even seem to change the login name on the PS4 launcher for some reason.

Many thanks for any suggestions ;)

That's not possible. Once a service account is tied to a PSN, it's unremovable.

If your son wants to play, you'll have to buy it again on his account

You'll need to set up a second psn id on the ps4 and purchase a copy on that id.

Was afraid that was the case. Thanks for the replies!!