Picmonics can be enjoyed by all ages, our Free K-12 option contains some great educational content for your children. We do recommend turning on Safety Mode from the bottom of your Site Settings page first, though! This is especially important if you have a subscription to another area of study and are using the same account as your child. This will enable Safety Mode on all Picmonics viewed on your account.
Just a heads up, sharing an account will affect your point tracking, recommendations, and stats!