How to setup Screen Time restrictions for child on an existing iPad?

I have an old iPad that was mine, my data and my iCloud account. I would like to setup that iPad for a child with Screen Time restrictions.

I have removed my iCloud account on the iPad, created and signed in on a new Apple ID for the child. It shows the child as the main one on the settings.

But when you go under Family it doesn’t show the child but show’s my wife as (Me). On my iPhone where I manage as the Organizer I see everyone but going to that child the iPad does now show up and says “As this device is used, screen time will be reported here.”

When a new app is requested or asked to download my wife gets the notification to approve and I do not. And I can’t even sign out of the child’s iCloud account on the ipad as it is grayed out.

One reason we have Apple is this is supposed to be easy, easier to manage a kid’s device but not so.