Well, actually, much like this show, we run our household like a 50s sitcom. So she refers to me as "Mr. 1."
Back to Vision, yeah, it's an interesting subtle little thread in Age of Ultron how his "name" comes about. Thor first refers to him being from his vision that he had at the Well of Wyrd, and it just kind of sticks as a reference to him. Later, Ultron twists that a bit and says, "They took my vision," also referring to Vision, but also not by "name" so much as Vision was the culmination of Ultron's vision of his and the world's "evolution." Both are, of course, a play on the character's name from the comics, and an interesting way of seeing it become a name for this character in the MCU. So, yeah, it's more of a "description" of something related to the character rather than the character himself (and two separate somethings, depending on who is using it), but gets adapted to be the character's name.