Just saw this post and thought the responses seemed crazy:

https://np.reddit.com/r/relationship_advice/comments/11noaf6/mym28_girlfriendf24_changed_her_mind_about_our/

He doesn’t have a say in the name because he’s not married to his girlfriend? He’s still the father.

At least it seems that they’re implying that marriage is used to force a guy to stick around if he doesn’t want to put half his stuff on the line.