The role of reflective clothing?

So it’s obvious to see why workwear for kids with fluorescent bands would be useful when they’re walking on sidewalks or playing outside. During the daytime, the fluorescence seems to glow in the sun and at night it reflects all light coming from streetlamps and car headlights. Workers who wear hi viz clothing usually do so because they work in low visibility work environments that can be potentially dangerous.
Workers will often wear hi viz coats and jackets in these working conditions for extra protection against the elements and adding high visibility trousers to the outfit completes the whole high visibility look for optimal safety and protection. In low-risk working environment, they sometimes only wear high visibility waistcoats since they don’t need as much protection. The same goes for children, who typically only need one high visibility item of clothing at a time to stay safe. A high visibility jacket or shirt is the only hi viz clothing for kids that they need. Workwear for kids when they’re doing something more dangerous like hiking or something similar is typically thicker and provides more protection against the elements.