Hi Jeffrey,
It may also have to do with how "organized" the group's structure is.
If the dance is run by a 501c3 non-profit (or similar tax-free setup) the group's
by-laws may dictate how boards are elected, how long officers serve, what offices are
held, by whom, etc. Other dances may be more informally organized & don't need to
follow lots of R&Rs. Some venues require, or perhaps prefer, rules of organization
while others seem to just happen on an informal basis. Depending on the circumstances I
would say either model works.
Best to all,
George Fowler
Blue Hill, ME 1st Sat dance