It really can be, and it's why I stopped trying with some people. I figure time will prove them wrong, and/or they will take the time to learn about it as I did. People can be so narrow minded when it comes to things they don't understand. I have to admit, I thought bad about Bitcoin as well when I first heard about it. At least I was willing to go into learning about it with an open mind.
The future does not belong to the defenders of the status quo. I don't want people like that buying Bitcoin - they don't deserve to be early adopters.