From the appearance, if the claws of a 4-year-old cock are full and powerful, like two machetes, then such chicken claws are usually more valuable. Because this kind of claw is considered to have high ornamental and collection value.
From the use point of view, if the paws of a 4-year-old cock are used for cooking or food processing, their value may be affected. Because chicken feet usually don't need too high appearance, but pay more attention to taste and quality.
In short, whether the paws of a 4-year-old cock are valuable depends on its appearance and use. If the product looks good and is suitable for collection or viewing, its value may be higher.