Our church is very small, but would be totally supportive. When we've been stationed overseas, we put all our stuff here in storage. Adopting a people group can be a fun family project for a homeschooling family. Oh, I mean, the rapport with the people, that kind of thing. We use unit studies.
Friendships seem to have alot of continuity.
Hmmm, very interesting, and helpful. Because of the speed of the communications, ease of transportation, et much can be done especially when linked with full time work. As for prayer, it's easy to use things like Global Prayer Digest to have family devotions and prayer around that worldview. A great book. One example is the persecution that arose in Jerusalem, causing the reluctant disciples to spread out.