
StreamOfTheSky |

I wondered that a while back. My DM eventually agreed the familiar learns the language, though in my case my familiar was already capable of speech (and an improved familiar, too).
I think if the familiar can mimick human speech, lke a raven, linguistics should let them gain more languages to speak. Other familiars would be able to understand the language, but be unable to speak it due to not having the vocal chords or whatever to enable speech.
Just IMO.