[adamsea]

Well Facebooks content is human.

Also, what about books? Ideas? Film.

IMHO people are too complicated, and situations too situation specific to be able to generalize about how someone is influenced.

Sometimes people ignore the advice of those close to them, sometimes they don't, and, it probably depends on the subject being discussed, the particular relationship between the people, the state of mind of the person in question, and so on.