Sleep paralysis occurs as a person is moving into or out of REM (rapid eye movement) sleep, the deepest part of sleep. During REM sleep, the body is largely disconnected from the brain, effectively leaving the body paralyzed.
England and a few other countries start formal education at age 4 or 5. That's harmful and misguided.
Non formal education (NFE) is popular on a world wide scale in both 'western' and 'developing countries'. non formal education can form a matrix with formal and non formal education, as non formal education can mean any form of systematic learning conducted outside the formal setting.