[GoNative]

I see a lot of it up here in Hokkaido. Many little villages where you struggle to see anyone under the age of 60 living there. All the younger people have headed to the cities for employment not wanting to continue in the family fishing or farming business. It's not just a case of everyone moving to cities either, it's also a problem of a declining population as a whole.
Some of the towns near where I live actually offer free land for younger couples to build a house on as long as they commit to living in the town for a minimum number of years.