How about another question…
Say every person on Earth were magically provided with the equipment and facilities for every sport. Hockey pucks, soccer balls, racing yachts, lacrosse sticks, swimming pools, etc. Hell, thoroughbred horses even.
What sport would emerge as the most popular?
With current mindsets already in place, everybody would just keep playing the sports they like, but with better facilities and equipment. Baseball might get a little more popular, but that’s about it. American football won’t be any more popular because places that have interest in contact sports already play rugby.