Another reason might be that in Europe soccer is considered a rather masculine sport. Very few girls even consider playing it. Girls usually play volleyball, ha

Another reason might be that in Europe soccer is considered a rather masculine sport. Very few girls even consider playing it. Girls usually play volleyball, handball, etc. but a girl that kicks the ball with a foot would be strangely looked at here. In the US, I hear, soccer is reasonably popular as a female sport, so the talenf pool is larger.