It was edited to "average educated European", whatever that means.

But I think two languages is probably not exagerating. And not only in Europe. People have their native language and usually an international one (in Europe that would be English).

And then there are similar languages. Say a Spanish person will speak Spanish and English, and possibly French/Italian/Portuguese, so that quickly goes up to 3. Also in many countries there are already multiple languages (a portion of Spain speaks Catalan and Spanish as native languages, then probably English as international language, and they are probably not bad in French/Italian because of the similarity).

Same in the northern country that are all germanic languages: Swedish is pretty similar to Norwegian for instance, both are not too far to German, and everybody there speaks English fluently.

And then if you go in the Eastern Europe... like in Slovenia people seem to all speak 5 languages, it's insane :-).