Unless the marriage is taking place in a foreign language, or unless the person has a mental age too low to be considered able in law to consent to marriage in the first place, how can they not understand what they are consenting to?
“Forsaking all others… for as long as you both shall live.”
That’s the vow, you think about it before saying “I do.”
Also, anyone getting married in a Catholic Church has to sign a prenuptial enquiry form with their priest, where they have to sign yes to 4 propositions, that they understand that Catholic marriage is:
- Lifelong
- Exclusive
- Open to life
- Sacramental
Also, in most diocese, you have to go through up to 6 months of prenuptial preparation classes in church before your wedding. I was engaged, I know all this from first-hand experience.
In what way, other than sticking your fingers in your ears and going “La-la-la-la!” can you not be aware of what you are consenting to in getting married?