Well I didn't really have any issues with my mother or sister, my mother just doesn't care and my sister is familiar with bronies. My friends did find it quite funny, although surprisingly they didn't know that much about MLP, truth be told MLP isn't as popular in Europe as it is in the U.S, I knew next to nothing about it prior to FIM becoming popular. So no I don't think most people care because they don't know much about it.