My son is asking if he can play the game; however, I have some concerns with the prospect of being banned for account sharing.
My alliance leader just received a week ban on his account and his son's account. They use the same devices. While the son does not play the father's account, the father does play the son's.
This is the exact same set-up I would be dealing with if I allow my son to play. We will share devices for our accounts, and I will log into his account because I'm a parent and parents need to parent. He would not be logging into my account.
My alliance leader is currently trying to fight the ban and has submitted a ticket.
I checked the EULA and it doesn't say anything about circumstances like this. It only says:

So, am I to infer a parent is breaking the EULA by logging into their child's account?
I need some clarification on this.