I have signed up my 7 and 4 year old to the site and they honestly like going everyday. While you do not need to create a username and password to access the information on the site, you would need it to save your progress. The site is fully COPPA compliant as well.
** If you are a teacher you can create a class and add students through Google Classroom - so easy to set up! **
Embedded below are 2 videos. The first one is how to sign up as a parent and I walk you through the site.
The second one from the teacher point of view.
Parent Point of View
Teacher Point of View
As always, ask away if any questions!
Brad