85% is not 100%.Your’s was able to make it through starting out with a disrespectful gesture other marriages are not.
I don’t suppose you have a source for this 85% statistic you’re throwing around? Given the seeming impossibility, I’m betting not.
You do realize what the cake cutting tradition is supposed to symbolize right? The taking care of and providing for your partner so when you smash the cake you are in essence saying that you will not care for your spouse....