Why don the White Sox wear white socks?
They used to, back in the franchise’s early days. White started disappearing from their socks in the ’40s and had vanished almost entirely by 1953 (although white stirrups reappeared for the 1959 World Series, and again — with blue sanitaries! — in 1969 and 1970). But as to the larger question of why they went away from white, the surprising answer is that nobody seems to know. There’s a good treatment of this question here.