We train to be strong enough to attempt the thing that inevitably kills us.
This isn't a fatalist statement of any kind. We're very aware of how dangerous climbing can be. It's hard to ignore when every month you hear of someone take their last fall.
The fact that climbing is dangerous makes it beautiful. It is the weighing of risk, the overcoming of your fears, the measuring of your own abilities. Everyone has to decide for themselves, without shame, and without hesitation.