[ThrownOffGame]

Clandestine weddings have presented a huge problem for Church and State authorities at various points in space and time.

A clandestine wedding would often leave significant doubt about the facts of the ritual, the participants, and their actual state of mind. In most places it really is not legal to conduct a clandestine wedding without strict regulation and some sort of documentation, before and after the fact.

No officiant: invalid. No witnesses: invalid. Prior bond: invalid. Duress or coercion: invalid. These are all really, really important reasons for public ceremonies attended by, essentially, randos off the street.