Is there a requirement to join something or contribute financially?
No, there is nothing to join and no obligation to contribute financially, either during the preparation process or after a person is taught these techniques. There are registration fees to attend some of the larger events, but both the fee and attendance are voluntary. Donations are sometimes requested at local events to help cover such costs as meeting room space or audiovisual equipment, but giving is always a matter of voluntary choice. Admission is never denied because of inability to contribute.
