Can't add child's Gmail account to Mail on Macbook
My son (11yrs) has a Gmail account that he was using for emails on his Chromebook. Now he's using a MacBook and it says that accounts managed by Family Link are not allowed to sign into Mail on his MacBook. I can't see a way to fix this in Family Link, and if I delete his account from Family Link, he loses his Gmail account. Any suggestions
iMac 21.5″, macOS 10.13