Football/dance are extra-curriculars, I am all for coding being an option early on (high school?) but not anytime before then. If a kid shows an interest in coding, they'll find a way. And parents nowadays are more aware of it as a viable option
Even if this seems worth it anyway, a teacher "trained" in coding is not a programmer I would trust to teach my kids coding, and hiring CS majors would be monumentally too expensive. At the end of the day it's not practical.