I wrote the course content to be suitable for all children, however it is perfect for 10yrs - 15yrs.
The course content requires students to use some software that sets a min age of 13 years to create an individual account.
EG: A Google account and Adobe Creative Cloud membership (free).
If under 13 yrs an adult educator will need to create an account for the student or family to share.
The 13yrs min age is only a requirement if a child is working alone and they need to establish their own software accounts without adult supervision.