In his annual letter to priests on April 6, 2004, the pope said ...
"Show special care for altar servers, who represent a kind of 'garden' of priestly vocations,"
"The group of altar servers, under your guidance as part of the parish community, can be given a valuable experience of Christian education and become a kind of pre-seminary,"
With the exception of one girl, the pastor at my Maronite Catholic Church, works exclusively with boys. He treats them with great patience and respect. The boys truly look up to him and I would not be surprised to see some vocations 'blossoming' from this group. God bless him!
And I suppose it's NEVER crossed your mind that this one girl also benefits in that she may consider the religious life for herself, or if she becomes a mother that she may pass on love of the mass and the Eucharist to her own family....