Walker could have left BYU for the “money” and saw what the professional running life was about and decided it didn’t suit him personally and financially. I had a cousin who could have had a career in the WNBA but went to dental school instead. Her parents said it was an easy choice. Another cousin had a chance to play minor leagues baseball but decided being an accountant was the better long game. To each their own. The 800 field looks stacked for the next Olympics and the professional track life isn’t all that it’s cracked up to be unless you’re at the very top like Bolt or Felix.