I want to live in the YKK world so bad, it's so perfect.
Takahiro didn't move away because he was struggling to survive, he had ambitions he couldn't fulfil locally so moved away to one of the big cities, that's the same as people do now.
Besides, if Oji-san can make a living selling small amounts of gas and crops, then I'm sure others could. Also the strong sense of community would mean that even if you were having trouble, people would help you out.
You're right about Takahiro moving away because of his ambitions but in this world you can take a plane and visit your family easily. And people are still struggling to survive, as shown by this lesbian Social Justice Bot telling Alpha to check her robot privileges
Well Alpha is the exception seeing as she's an Android, she really can have an idyllic life because she doesn't have to eat or drink like a human and worry about anything.
Though Owner was also able to live there with her, would be interesting to know what he did to get by.
So nice to read YKK with this on:
Perfect for just sitting down and watching the world go by.