This is one of the reasons the concept of informed consent is necessary in medical an other important situations. Life is complicated, and a lot of harm can be

This is one of the reasons the concept of informed consent is necessary in medical an other important situations. Life is complicated, and a lot of harm can be done if important questions understood incompletely, hastily, or even not understood at all. If it's important, there is a duty to take the extra effort to verify there has been a true "meeting of the minds".