This white jersey stuff only started in the 1950's because of black & white TV. Even all the poor people have color TV's these days - you can get one for $100. My dad said that back in the 1930's & 40's you wore your school color jerseys every week (as other posters have noted). I was super-bummed that we couldn't wear our "Green Machine" jerseys for the Cotton Bowl after the 1977 season. To my recollection the Cotton Bowl wanted to do this but was nixed by Network TV. Even in the 1970's almost everybody had color.