Considering the amount of open infidelity around the place, I don't have the same feelings :->

When we have the proper discussion of what marriage is there for, we can thrash this one out properly - about whether saying "I'm married" is about making sure that you can inherit and get power of attorney, or whether it's about protecting the kids, or something else.

Society is having to deal with this kind of thing anyway, due to the number of people who just don't get married, so having a proper conversation about it seems like a good idea.