text: Regarding: "I can take it or leave it, but it has absolutely nothing to do with our Baptism."
  - Yes, it has nothing to do with baptism. However, the baptised are touched an  awful lot during the various rites, especially infants and small children who are held during the rites.  That is, no-one is baptised without there being touching which makes touching part of the sacrament.
  - So it could follow, theologically that holding hands (touching) during prayer has a baptismal connection. Something like praying the rosary as a group is an expression of the good news of Our Lord Jesus Christ.