More and more kids are falling out of high chairs every year. One cause is the parents are not fastening their kids securely. Another significant cause is not fastening the tray correctly to the chair. Child-safety professional Tracy Mehan recommends this guide: Ensure the chair is connected with a three or five point harness and has a crotch strap. Make sure straps are fastened strongly to the chair. Set up the chair in a place where the child cannot grab anything nearby, also utilize booster seats that connect to a chair. In restaurants, make sure straps are strong.