i think more girls dont ski because, as mentioned, all they wanna do is be as popular and cool as possible, so they automatically start snowboarding because people view it as cooler than skiing.  At my hill, there are perhaps 6 girls over the age of 12 who ski, and its all freestyle....other than that, all i see are girls all decked out in the most fashionable skate and snowboard clothing, falling on their asses trying to butterfly their way down the hill on their snowboards...then they sit in the lodge for several hours at a time putting on makeup while trying to impress a bunch of thug snowboarders.