I think it is rather a healthy skepticism. Sure, a lot of people will not take their understanding any further, but most do not have the will or the time to do

I think it is rather a healthy skepticism. Sure, a lot of people will not take their understanding any further, but most do not have the will or the time to do so. Even knowing mean, mode and median is not enough. You really want standard deviation too. And that is just the basics.