People are too conservative. I don't like to use it either. You can't instantly see how much "cash" you have left in your wallet. I also think it's risky to use magnetic storage for such a thing as money. I'm in the neighbourhood of heavy loudspeakers too often.
The Dutch government however, is trying to force people to use it. You can fill parkingmeters with the card and many parkingmeters don't accept real coins anymore.
Eventually everyone will use it. I very sure about that.