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.
The problem with techies is that they never listen to average joe concerns and marketing people. These units are unusable counting number of zeros each time you want to pay and missing one. It is easier to deal with whole numbers and two decimal places because everybody is used to that.
This is why marketing departments exist. You and I might take the time to understand something like this but the average person tunes out after less than a minute. If it's not completely self-evident or there isn't a big push for them to figure it out they'll just give up almost right away.