Since we cannot predict what will happen in the future, there is no way to know when our children will have a fall which will leave them with a skinned knee. If you have KneeBees, please wear them every day for complete protection. Our daughter does not leave home without them. Every time she falls, we are extra thankful for her wearing the knee pads. So far, lots of falls, zero skinned knees. Please, wear KneeBees. They really do work!