What about native Germans though? At least here in Finland plenty of natives move away from the capital to smaller bordering towns once they start a family. Advantages are reduced cost of living, and improved safety & schools.

It happens here too, either willingly or not. At some point the city just isn't suitable either because of cost, infrastructure (especially for raising kids) or general unpleasantness.

But for most immigrants it's really hard to feel at home in a small town halfway around the world.