What possible &quot;manufacturing standard&quot; could fix that method of injury you quoted?<p>&quot;According to the American Association of Orthopedic Surgeons (AAOS), 246,875 medically treated trampoline injuries occur annually in the U.S.&quot;<p>If kids want to jump, get them a safe inflatable castle and let them jump inside. Those don&#x27;t suffer from the trampoline problem you delineated, and frankly are more fun.<p>The real problem is finding alternatives for things like stairs and bathtubs.