What kid wants to go to a wedding anyway.
And the fiance should run for the hills NOW. “MY BIG DAY.” Not “OUR big day.”
If you read the article, sounds like he was part of the decision.
My fiancé and I decided pretty early on that we didn't want kids at our wedding, but we've made a few concessions for close family members whose children are going to be a part of the ceremony.
In Spain, it is cultural to include complete families - including all kids - at weddings.