This is an excellent article. What a world we live in. https://www.washingtonpost.com/news...-preschoolers-and-the-rise-in-sensory-issues/ One paragraph: Preschool years are not only optimal for children to learn through play, but also a critical developmental period. If children are not given enough natural movement and play experiences, they start their academic careers with a disadvantage. They are more likely to be clumsy, have difficulty paying attention, trouble controlling their emotions, utilize poor problem-solving methods, and demonstrate difficulties with social interactions. We are consistently seeing sensory, motor, and cognitive issues pop up more and more in later childhood, partly because of inadequate opportunities to move and play at an early age.