“educational products”
Education is not something to be bought, it is something to be accomplished by hard work.
If the schools teach garbage, the students will wind up in an economic garbage can.
There are educational products for adults, such as for learning a foreign language. I’d buy an IQ raising course, if it would work, and I certainly work hard doing it. I fear that as I age my cognitive abilities will decline, so I have looked into some of the apps and websites that supposedly keep you sharp. There’s little evidence that they do, and any of the pills you see advertised don’t work either.