I've read around that one of the reasons for bitcoin's slow adoption is the psychological factor of having "just a few bitcoins."
That's silly. That's like saying there is a psychological factor of having "just a few thousand dollars". Anyone who feels that way, isn't capable of logic and reason. As such, they wouldn't contribute much to the economy anyhow. Eventually, when all they can have is "just a few micro-bitcoin, they may finally see reality and come around.
That is ridiculous. There is definitely a psychological factor involved in how people perceive currency magnitudes, that has noting to do with reason. Should people who are afraid of peanut-butter be denied excess to the economy, because there believes are irrational?