Children who just can walk are not suitable for this sport, because when walking on cobblestones, the pressure on the soles of their feet is much greater than when walking on the flat ground, and the bones of their feet are not fully developed (especially on the heels, because the pressure is concentrated on the heels when walking), which is not good for their health. At this time, parents can let their children walk barefoot on the ground, paving the way for pebbles later. When children are five or six years old, they can experience the concave and convex feeling of pebbles for the first time and make them interested. Generally speaking, although the proportion of children and teenagers walking along the cobblestone road to the finish line is far less than that of middle-aged and elderly people, which is generally around 30% (the "sticking to the end" here is based on the above-mentioned "relaxing and feeling comfortable"), once you are within this 30%, you will adapt faster than adults and have more obvious fitness effects. If a person walks pebbles for 40-60 minutes every week from the age of five, it is very helpful for his physical development. Parents may wish to give it a try. If the soles of your feet are adapted enough, you can try running or jumping on cobblestone roads, and the fitness effect is more obvious, which is where teenagers have more advantages than the elderly in this respect. It is very beneficial for a child to take barefoot exercise from an early age.