Currently, kids need their own email account for each account on this website. We’re working on getting that updated soon but that’s what we’re working with now.
If you family are gmail users, you can create a monitored kids email through Google Family Link. Or you can check out this review from Very Well Family about kid friendly email providers ZillaMail, KidsEmail, and TocoMail. As a disclaimer, we have only personally used Google Family Link.
Public school students usually get an email account. So if your kids have previously gone to public school or you are comfortable working with the local school district to get one, you can use a student email address.