I would rather train youth and people to be the kind that could also be of service to Christ in foreign countries and could converse with natives there. Children around the world develop linguistic knowledge in similar ways and at similar stages of their life, no matter how 'difficult' the language may appear. Language is not the result of a conscious decision. Language is not triggered by external events. Language is not the result of direct teaching or intensive practice.
Language develops along standard lines correlated with age and other types of development.
Not by imitation 2. Not by reinforcement 3. Not by memorizing grammar rules 4. In stages 5. I did not learn by elders teaching me words in any systematic way, as I was soon after taught to read and write.