Do you consider weddings to be an excusable absence?

Let's say that you allow students to make up an exam if the absence is considered excusable (illness, traveling athlete with the school, attending a conference, etc.).

I'm unsure how to handle weddings - on one hand, attending what is essentially a party doesn't feel like a valid reason to miss an exam, but on the other hand I understand it's a family event and that you as a college student likely have no say in scheduling it.

Would you allow a makeup exam if a student had to attend a wedding?