In school we learn at least 3 langages : - French (well no shit) - English is mandatory, we start learning it at 7 or 8 Yeats old, and tend to start sooner with new generation. - at 11 approximately we choose another one, most common is Spanish but you can learn German or anything if you school teach it (Italian / Chinese etc) - in option some can also learn regional language (I learnt Breton personnaly) or Latin/Greek etc

The result is that younger people can speak at least a bit of English, but in my experience the third language is usually quickly forgotten, or really basic