The opening line. The unsaved, have no right to call God Father. So before it can be used as a teaching tool the kids should have the scripture expounded on that so they can come to God as their true father
You mean this line:
Teens and other beginners need to grow in prayer
Or this line:
A previous article1 discussed the special needs of adolescents for authentic prayer.
Again, I am confused. Are you saying that Catholic teens are unsaved and so have no right to say that prayer?