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.
Between the ages of five and 16, children are given an education that serves them throughout the rest of their lives.A good primary and secondary education is extremely important, both for academic and social development.