No. They are not students at the school.
They should not be on the team.
How about JJ Watt or Jaclowneon Davis? Same deal?
They ARE on the team if they otherwise qualify.
“should not” doesn’t matter.
Maybe Chauncey can run, or Fauntleroy can jump? Who cares. If they make the team, they get to play. Same as anyone.
Maybe Jaclowneon is a good debater, and JJ Watt has a mean backhand?
If they make the team, they get to be part of it.
Now, if you are advocating private funding of public school sports - that’s a different matter. We can make that one work any way you want. I’d agree to that.