Servus altogether,
there's a strict distinction between ArcGIS Online and (My)Esri Accounts, which is really fine due to the DSGVO. On the other hand, we can't grant Esri Access to our AGOL accounts without consent.
Esri Traininng content is available only via a public Esri Account, and I have to grant that access in MyEsri, Therefore, I need proper Esri Accounts, which AGOL accounts are not by default.
I think, this should be better integrated with ArcGIS Online... Then, administrators could even set up a role there...
Happy GISing,
Mascht
