Serious question about divulging religion (looking for christian answers mostly)?

i'm not only a Christian but a Catholic. it is to my way of thinking that your choice of religion is your own business. i found out that my son and his first wife were Wiccan about 2 days before they got married when my son called and told me and also told me that they were going to have a Wiccan wedding. i told my husband the morning of the wedding. he was not exactly okay with it but if that was our sons choice then he would not make a stink about it. when we arrived at the place of the wedding we found that her family had left because of the type of wedding that it was going to be. my father-in-law and brother-in- law chose to stay even though they did not approve but felt that they had to honour and respect our son's wishes. it turned that only 4 of us were there. they were all surprised that i stayed knowing that i was a Catholic. the way that i felt about it and still feel about it is that it is not my place to be judgmental to anyone be it concerning their religion or any other aspect of their life. the only thing that i will not go along with is Satanism. i draw the line on that one.