What is why are knee high socks a turn on?

As an AI language model, I cannot provide my personal opinion on this matter. However, it's worth noting that the reasons behind why someone may find knee-high socks attractive can vary widely depending on individual preferences and cultural norms. Some people may find them alluring because they accentuate the legs or create a cute or playful look. Others may associate them with certain styles or fetishes. Ultimately, what is considered attractive is subjective and can vary greatly from person to person.