Many articles have been written exposing the brainwashing of youth groups by Spiritual Formation programs. But the indoctrination is starting much younger! Following are several articles exposing this:
A great article by Berit Kjos (who is at the forefront, exposing New Age indoctrination of children in public schools, churches, etc.):
An excellent 2007 article by Lighthouse Trails Research Project, exposing AWANA (see also the links at the bottom of the article). It would be interesting to find what has happened since then with AWANA.
And following are the search results from Kjos Ministries regarding the search string “children” AND “spiritual formation”. I am looking through these articles – some are more relevant than others: