As a Mum of 3 young primary school age children, I understand how dangerous backyard play can be. Why buy a trampoline that does not have a safety enclosure? First priority is to have the children play safely on your backyard trampoline, but secondly, you can relax and enjoy your family, friends, free time, knowing that the children cannot fall off the trampoline. I believe a trampoline safety enclosure is a must. It is very inexpensive to turn your ordinary round backyard trampoline into a safety trampoline by attaching an enclosure. Small price to pay for piece of mind.