that I know of, won't participate in weddings unless the parties are members, and premarital planning is a must. (Catholics have backed off from this.) All also have follow-up systems in place if asked for. All have significantly lower divorce rates. I don't doubt the Oregon program has been a factor there. No doubt collateral damage is down also. (Problems with kids and finances.)
And there's always Plan B:
What an idea. Should have been implemented years back.