Continuing the discussion from Private Residences, Farmland & K-12:
This definitely doesn’t change the argument as you are saying “not only local people under 18 use it but other people under 18 also do”.
The criteria is not just limited to schools but also “other facilities”. Most reviewers view it as if it;s somewhere that a parent leaves the child with other adults then it should be Rejected. Scout facilities / camps are a common one.