First, this follow up question was sparked from this previous question, which can be summed up as "are there restrictions on parental rights to limit a minor's association."
I'm assuming we are not talking about any kind of activity or speech that would be regulated under "vice" laws (strip club, 21+ bar, etc).
If you have a group that minors regularly attend, is there a requirement on the group to obtain parental consent? Does the group's type of speech matter (religious, political, etc.), or does it matter if it is a group "targeted" at minors?
A few test examples I would be curious about:
A non-religious (LGBTQ) student support group meeting at a high school, allowed to meet as a club on school grounds (presumably with protection under the Equal Access Act). If there were a non-professional volunteer from a national non-profit often in attendance, but not offering counseling services, would that change things?
A recognized church (by the IRS), meeting on their own property. I've been to many cathedrals, churches, temples, mosques, gurdwaras, etc., where one could simply come to the back of a service, listen to the speech, and leave without really interacting with anyone.
A religious organization targeting minors on a high school campus. Again, I'm not interested in a specific case but groups like the Secular Student Alliance, Campus Crusade, Young Life, or the local Muslim Student Organization. Would there be a duty on the group to control and monitor attendance based on parental consent?
I'm worried this might get into hyper-local laws, so if there are some general test cases/areas, I would appreciate the general theory.