Hmm, I've already commented on this. Yes, I do think it's silly not to step up which is why I keep bugging them. I've already stated that some of them are technophobes and that they need help with using a PC sometimes, no one's perfect. : )
The arguments they come out with are a bit more complex than what I stated, the context of them isn't very well suited to a discussion on the JREF forums. I just gave you what I indicated as being the most common response.
The only place it could lead anyone is to a greater understanding of things. Although, you'd probably perceive failure as being the inability to think in the same way as you do, which is also "interesting".
I would be truely concerned for the future if everyone thought like me (well, even more so than I am now), so I'd not consider it failure. Indeed, a good many wonderful things have been stumbled into by discarding rational thought or even common sense.
Watching people deal with inconsistency is simply interesting. You believe these people to be somewhat reasonable, even if a bit peculiar about some things. You believe they possess their claimed ability. You believe there must be some way to test their ability sufficiently to pass the challenge.
If they do not choose to take the challenge, which belief will you re-evaluate and why? That they're reasonable? That they possess their ability? That the ability is testable?
Or perhaps you'll simply choose to live with an inconsistency in your belief set. I myself do so (likely more than one).