I agree that this is an information problem. Unfortunately, too many people will take information presented to them, think it doesn't apply to them, and disregard it with an "it'll be fine". The consequences for failure to comprehend what she may be getting herself into are very high and the lack of experience may indicate that the couple in question just don't realize how hard this trek will be or what the risks are.
Please accept I'm not disagreeing with your premise; I think you're spot on. I believe that it's not worth the risk of someone possibly ignoring what they're being told; t…