My non-photographer friend/wife/husband wants to come, does he have to pay?

Yes. Its kinda like when my wife drags me to the opera. I don’t want to be there, but I still have to pay for the seat I occupy.  We usually are happy to have friends and family attend events, and they can shoot with whatever camera they bring with them (even a camera phone).  But just like a movie theater expects everyone to pay who attends, you will be responsible for any payments or fees associated with your guests.