The Catholic Church has had a similar requirement for more than half a century.(Pre Cana Conferences) It does no harm and often opens the eyes of young soon to be wed people who are temporarily blinded by a severe hormone rush. That being said I do not believe it is any business of the state, church yes, state NO!
Having attended Pre Cana conferences that were conducted by celibate nuns and priests, I’d have to say they were wholly out of their element. I actually felt bad for them.
my wife and I facilitate pre-marital meetings with some couples getting married in our church. I am always amazed at some of the notions and teachings some of these young couples have. Although I am older and a little wiser now, I don't remember being as misinformed as some of these young couples. We got married at 19 me, 16 her, and this year we'll celebrate our 40th.