[sigmaprimus]

>because people can't be trusted...

I suppose that is true, where I live chiropractic visits are subsidized by a government run medical system and because of that, there is a detailed record of treatment. Positive and negative outcome inference should be possible with such a record so trusting people is not required.

In other words, if enough people visited chiropractors and then later visited doctors for pain medication and or surgery then there would be a reasonable argument against funding chiropractic treatments. I can only assume the opposite is also true, hence the reason they are currently and have been funding chiropractor treatments for the last three decades.