The primary cause of failure often is lack of pre-field preparation. The whole episode becomes a colossal waste of time, and a drain on the missionaries. To this we have to add the high cost of teams junketing off to exotic places. But we have to examine our total investment in light of the returns, as well as the problems we create.- Jim Reapsome, former editor-at-large for Evangelical Missions Quarterly. [Link]
You still have time. Don't waste the opportunity. Your kids, their parents and the people you are serving with are worth the extra time and effort you put in to training them in being a team, navigating culture and serving with passion.