Switch family managers to PS4?

I set up the PS4 for my son some time ago!

In the meantime, it would be appropriate to set seasons for him!

However, his scores are run under the user who is registered as a family manager! Can I switch the family manager between two users so that my son keeps his scores and I can act as a family manager?

In my opinion, the family manager can't be changed or deleted. I also had a similar problem. Another option would be that he creates a second account and logs in to the games with the login data of the other account. But losing game data is actually not possible if you have saved it online. LG