I think that the Sicilians consider weddings a divine setting. It's where a new family, which is another thing they consider sacred, is created. Therefore, when the father of the bride is sure that he had fulfilled his job (about securing his daughter until she starts a new family), he is expected to celebrate. Thus, the audience-granting of wishes...It is culture.
"..Your youngest and strongest will fall by the sword.."
"...now you gotta speak more than one language to pull a heist..." Pudge Nichols
"...Never shall innocent blood be shed; yet the blood of the wicked shall flow like a river. The THREE shall spread their blackened wings and be the vengeaful striking hammer of God..."
