ELI5: If a country has birthright citizenship i.e. all those born there are automatically citizens, couldn't a woman go there on vacation/business/illegally, give birth, then the child would be a citizen giving the parent rights to stay/move there too?

ELI5: If a country has birthright citizenship i.e. all those born there are automatically citizens, couldn't a woman go there on vacation/business/illegally, give birth, then the child would be a citizen giving the parent rights to stay/move there too? * /r/explainlikeimfive

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