This pilgrimage is targeted at fathers and sons or grandfathers and grandsons.  I think a young man of 10 or old should be able to handle the riggers of the daily schedule.  I can also see father’s taking their grown sons.  It is never too late to strengthen the bonds of family.  We never know when our earthly pilgrimage will end and we will go to the next.  You don’t have to be Catholic to go, but be advised we will be drinking fully of the deep Catholic culture along the way.