Depends on the country probably. In some places, at least reasonably high English fluency is near universal. It wouldn't be surprising if these countries eventually became effectively bilingual.
Yeah, the multi-lingual stuff isn't what I'm talking about. I'm referring to countries where English is spoken enough by this generation that it may just leak into a first language for their children or grandchildren.
If you’re a born in a Welsh speaking household English is of course technically not your fist language.
Yet by the time you’re an adult you’ll probably be indistinguishable from a native English speaker and likely use this as your primary language outside of your home. It really matters very little that English isn’t technically your “first” language in a situation like this.
