This is the age old problem of people's worry quotient being more about their perception of the risks involved in something rather than the actual risks involved. Trying to get around the problem of the actual risks doesn't often work because you can't get past the perception barrier.
I used to get people to come gliding many years ago (a good example since people's perception of the risks associated with gliding are oftern worse than those associated with flying due to lack of noisy thing in front) by telling them to come to the airfield and just enjoy the view- no pressure to go up at all. Great fun on a sunny day. Needless to say that once people had watched the operation running for a while and become comfortable with the environment, and therefore adjusted their perception of the risk, they invariably opted for a flight.