[hrktb]

Except when you have a really really good reason to do so, you shouldn't limit your app download countries.

Even for apps requiring physical or legal presence in the country (specific store app, subway guide, bank etc), you still have a chance that the people using it set their Google Play account to another country or use foreign billing information. Expats and tourists are an obvious case, using the billing information of family or friends abroad is another one.

Setting multiple account in different store countries is a major PITA, and getting updates for apps downloaded on mostly unused stores is painful as well.