Walter, I believe that your niece's experience (playing in boys' clubs) is not unique in countries with less women soccer players.
My sons went to soccer school since they were 4. The elder one (turned 22 this year) belongs to the first generation who had one girl in every team. There were no girls' leagues at the time (we're talking about late 80's, early 90's), but the gender barrier was truly broken.
Now they have girl's leagues and many schools have a women's football (soccer) team.
Craven,
I've seen both Hamm and Pretinha on TV (the American, several times; the Brazilian, in the World Cup game against Mexico
). Hamm, already a veteran, is superstrong and can read the game very well, like an offensive Beckenbauer. Pretinha is like a female Garrincha: artful and witty, she plays more beautifully, but Hamm is more effective.