I know my blood type.. but my BF is curious to know his. I dont think he has any “real” reason to know, other than curiousity. He is Jehovah Witness and they have beliefs about accepting donor blood and organs, so he wouldnt need to know for that reason.
I wouldnt know where to go to do it.. I know hospitals have labs and such, but they need an order from a Dr, and it just seems silly to pay for a Dr visit just to find out a blood type.