Came here to say the exact same thing. I grew up in India and I can speak 4 languages with full proficiency and 3 more relatively well. And I have seen atleast 30% of every classroom, in every school I went to speak multiple languages.
Also, right in my family, we speak three languages on an everyday basis, it's interesting because, say we speak languages A, B, C; dad, mom and me speak language B with my brother, and dad, mom and myself communicate in A and all four of us switch to C whenever we wish to.
Also, right in my family, we speak three languages on an everyday basis, it's interesting because, say we speak languages A, B, C; dad, mom and me speak language B with my brother, and dad, mom and myself communicate in A and all four of us switch to C whenever we wish to.