This is off topic, but you probably know the answer to this. For the two registered YPT-trained adults, of age at least 21 years, one of which must be female (needed for any activity involving Scouts BSA girls) --- does it matter whether these two adults are related to each other? Can a husband and wife be the only two adults with the group? I haven't seen any mention of this in what I've seen of BSA requirements, but my knowledge is limited. It sure would be convenient. I do kno