He couldn't play soncs the beginning of the season, and didn't create a new account then? And now he's got a newly started, but with a legacy team account, that's only been played for a few days?

Nothing you can do about changing the age when set it low when you set up the account until next year rolls around. I've asked support a prior year.

But the account is just a few days old. I get it has a legacy team, but I'd still just say start fresh and create a new account.