[mchristen]

I believe there is a technical challenge they are not willing to overcome. My Google Apps account has long had broken integrations with almost all of the "new" google services. There is also a limitation in that you can't join a family group using a Google apps account, so I'm forced to have a regular gmail account anyways in order to participate in that.

[kashmirix]

I believe the limitation stems from the fact that Google Family uses the same underlying mechanism in Android as Mobile Device Management that's part of Workspace. I once managed to create an account that was simultaneously in Google Family AND in Google Workspace, but the end effect were constant notifications in Android that the account has joined Family, then deleted from Family, this several times a minute.