Philip Stoneman discusses how many talented young athletes quit their sport unexpectedly, leaving their parents devastated. He shares his own experience with his daughter Maddy, who was a highly talented gymnast but suddenly announced she wanted to quit. Warren Kennaugh, a behavioral strategist, suggests athletes often deliberate quietly for a long time as the "fun factor" of their sport diminishes and pressure increases, rather than abruptly deciding to quit. Stoneman advocates for parents and coaches to regularly check in with athletes, ensure their sport does not dominate family life, and encourage other interests, to help manage the balance between training and fun.