That is not true. Lang Lang said that many prodigies cannot sustain a professional career through the teens because of social pressures. He said very few continue. They were still prodigies but didn't continue professoinally. I know of 2 violionists who in their midteens, stopped performing professionally and took a different path.
And if you look at the documentary on Mark Yu, his mother made him practice. Is he a prodigy, yes, did his mother make him practice 6 hours a day at the age of 7, yes. She homeschooled him and his world became the piano. DD had a piano prodigy, now teacher from Juilliard. Her mother made her practice 6 hours a day and she stopped at 11 and didn't touch the piano again for 2 years. Then went back and got into pre Julliard at 14. She said it was such a big part of her life, she didn't know what else to fill it with when she stopped. It became who she was.
