I have no intention of suing anyone,
I believe in live and let live. Some people get their fun from belonging to religous sects[ the Wee Frees spring to mind]that disapprove of doing a lot of things on a sunday.
Although they are determined to prohibit and proscribe a lot of things,          I just steer clear of their meetings.
I choose which folk clubs, I play, I recently played Bodmin folk club and had a great night, if you are ever down there recommend it.
I would also recommend The Wilson Family Folk Club in Billingham, have you come across The Wilson Family, they are great singers, a club I have been booked at a few times.