No activity can ever be completely free of risk,
but you also have to weigh up the benefits. Taking precautions
to make the risks "as low as reasonably practical" (ALARP)
is just common sense.
Rock climbing without a rope would be an unacceptable
risk to most people. However, using the proper safety exquipment,
reduces the risk and gives tremendous benefits.
Risks are balanced with the benefits. Many cancer
treatments have really nasty side effects but they are worth it
to cure the disease.
You do this every day. Would you cross the road
without looking? Looking for traffic makes the risk acceptable.