Earlier I heard a religious leader on Radio 4 say "If people are allowed to go to the supermarket I don't understand why they can't go to church" ... and I've heard many examples of similar questions.
Do people really not understand this? Going to the supermarket is not risk-free, and neither is going to church. Obviously if you go to the supermarket and then go to church you're putting yourself at risk twice, rather than once. Multiplied over the entire church-going population, that's a huge amount of extra risk taking!
Of course, people can argue about what is "essential" risk-taking and what isn't, but they still need to understand this basic principle.