From what age is it possible to start education at the Menshikova School

From what age is it possible to start education at the Menshikova School?

“From what age is it possible to use school techniques for changing one’s consciousness? Is there an optimal age in order to obtain the best effect? Or does it all depend on the person’s intent and working capacity?”
If we change something, we have something to change. And this means that we are talking about the period when consciousness was already formed. At what age is the consciousness being formed? Well, this age is different for everyone.