Don’t know the demographics today, but 2 decades back we had 3K+ kids playing soccer with LYSA/CSC. It’s an easy sport for the young. Throw a ball out there, tell them to run and kick the ball in a net. No mommy keeping a scorebook like rag ball or basketball. When they hit U-9, that’s where the herd thins down quickly. Bigger field, more running and really learn the game.
So yes, a very popular game young, but long term not a favorite amongst American majority.