You might consider improvising when your son or daughter wants to ride pillion, but really, you owe it to yourself to give your kids the same protection and comfort you require from your outfit.
Besides, these aren't just adult pants turned kid-size. With extra features such as zippers to make the pant legs longer, children's clothing will grow along with your little passenger for a while, as he or she will inevitably get bigger.
In addition, you can be sure that all the standard elements are high-quality: hardwearing fabrics, protection against the weather elements, the right protectors ...
Only when practicalities are no longer a concern can you really enjoy your ride.
The outer fabric and membranes of motorcycle clothing are more demanding than, say, a T-shirt or a pair of socks. Everything is possible, but specific maintenance products for motorcycle clothing are not a marketing trick. General detergents can damage the properties of membranes and outer fabrics, so always check the information on maintenance of motorcycle clothing.