You are, sadly, confusing 'cultural practices'[kissing the priests hands....] with Faith.  Our faith belief  is contained in the Nicene Creed.  That is DOGMA.  That is what we believe.

Doctrines came to clarify the Dogmas [at first], but later, cultural/social practices, became the gist of doctrines.  Just as a very small example of this---- is baptism.  In the Gospels---only adults were baptized [Peter did baptize a whole Gentile family], but usually only adults.  Why were they baptized----to be washed from Original Sin?  NO---[no Original sin mentioned in the N. Testament].  It was to reject personal sin, and to accept THE WAY, the teaching and way of life that Jesus taught.

After the 7th Century, and for centuries after---even down to Vatican II---babies were to be baptized soon after birth.  Parents worried about having their babies die and be unable to go to Heaven [in Limbo] forever if they failed to baptize the child.  That was a doctrine.  Today there is no Limbo.