I am a member of a parish that practices the Extraordinary Rite. And I love it! I enjoy the old calendar, the words like vespers and candelmas, and more deeply, I enjoy the deep orthodoxy I find from the worship, and the connection with Christianity in older times. It is a place where Christ feeds me.
My wife does not find the Extraordinary Rite at all fulfilling, so we go to an Ordinary Rite together, and I go to the Extraordinary Rite early in the morning. As these are both Roman, I feel well connected.
But my wife did ask why so much in the Extraordinary Rite has to be in latin. I can answer because it sounds better and looks better that way, but I cannot find any deeper reason. I feel as though one exists, and should exist, to justify the use of latin.
Could someone help me out in this?