"Because of Mozart, it's all over after the age of seven"

In this quote, Wendy Wasserstein is suggesting that Mozart's musical genius has set an impossibly high requirement for young artists. She is implying that after the age of 7, it is unlikely for anybody to reach the level of skill and success that Mozart attained. This statement could also be translated as a commentary on society's fascination with prodigies and the pressure placed on kids to stand out at a young age. Wasserstein might be recommending that the expectations placed on young children to be remarkable in a particular field can be harmful and restricting. Overall, this quote highlights the impact and legacy of Mozart's musical genius.