But people make legitimate mistakes, what if grandma accidentally presses the wrong key because her glasses has a bit of much on it or her hand shakes a little. We do have a social responsibility to make things fair to everyone. I've been in IT for 28 years and I still make mistakes. In trading they have the "Fat finger" when a trader accidentally presses the wrong key, they still can reverse and fix it. Whatever coin can solve this dilemma will end up the winner.
What if grandma burn her money?