The question of how to change your Google Play country has been asked over and over. However, it's not clear whether this has any (unwanted) side-effects when it comes to apps, and especially those with region restrictions.
Some possible issues that come in mind:
- What happens with any free country-specific apps you have installed in the country you currently use? Will they cease working? Will they cease receiving updates?
- What happens with any paid country-specific apps you have installed in the country you currently use?
- Is it possible for an app to have different country-specific versions in two countries? What happens then?
- Can you change back your country any time you want, or is there a limit on how often you can change it?
This may seem like a dumb question, but I have heard some horror stories from friends who changed country in Apple App Store, only to find content they had purchased inaccessible. So I don't take the safety of this operation for granted.