Talk:SmileBASIC (Petit Computer 3)/@comment-26943857-20150924142838/@comment-24739388-20150924195400

Probably an E rating like PTC. The ESRB has quite an oversight in that it doesn't explicitly handle educational sort-of products like this (unless that's what eC is for?). CERO (the Japanese rating board) has an "Education and Database" rating for things of this sort.