Comment by arter45

So if you are born in a water scarce town, just move somewhere else.

But what if an entire country or a large area has this kind of issue?

Don't you need money, or something you can trade, to travel and build a new home somewhere else? Do you think everybody has enough money and resources to move an entire family in a new country?

What about language? Do you think everybody, even poor uneducated people in a small rural town with very limited access to water, know English or another common language? And if this is not the case, how easy it is to settle down somewhere where no one speaks your language?

Additionally, borders exist, and some countries have stricter immigration policies than others. You may not find it easy to move to a close country even if you have the money to travel, simply because the country you are going to may not want immigrants. Illegal immigrants exist, but then there are additional risks, like jail or death.

Even without enforced borders, don't you think concentrating a lot of people in the same area can recreate some scarcity issues, unless resources keep increasing with the population?