Take a look at this video. Although the speaker only mentions male servers, we engage both male and female servers here at St. Paul.
The crux, though, of this video is this truth: the disposition and actions, posture and demeanor of the server points to a greater reality --- the reality that God is present. Everything the server does or doesn't do either directs people to the reality of God's presence, or detracts from pointing to God.
Serving Mass is a sacred responsibility.