text: "Let any baptized Christian preside at Mass"
  I disagree. Sacramental ministers (what Sacraments mean is an entirely other matter) require formation, education, and "ordination". "Ordination" in the sense of being "sanctioned" on our behalf and of meeting the bar of knowledge, character and continuing study and renewal. Call it "ordination", "graduation", "licensing" or whatever.  As humans, we also need rituals - Jesus knew/knows that depite the mess our patriarchs have made of it. Whatever we think of the 'institution' we are the custodians of a long and deep body of faith knowledge that warrants caring "storage" and nurturing.