I'm not at all sure that's true. That is, I agree that many people probably understand that mean and median are both things, but suspect that a minority of them understand how and why they are different, or when and why one makes more sense than the other.
Back in the days when I traveled a lot, I would ask for some sort of on-the-spot compensation - usually, put me in first/business class on the rebooked flight. Sometimes it worked, sometimes not.
I was a vegetarian (abruptly) for a couple of years. Eventually I started to feel sort of icky, not properly nourished, though this is probably the fault of my specific dietary habits and not vegetarianism in general.
Since then I've stuck to a low-meat diet; I mostly eat vegetarian, and when I eat meat I try to eat low on the food chain. I'd say I eat fish and chicken about once a week each, and pork or beef maybe once a month. I also cook with chicken broth pretty often.
No idea which of us is more typical, but my doctor is awesome. Preventative care is deductible-waived, so there's really no good reason other than laziness for me not to get a regular annual physical.
A health problem that you are aware of. You're supposed to see a doctor periodically because they might catch health problems that haven't yet advanced to the point that you know they're happening.
About a decade ago, I got a physical after having not set foot in a doctor's office in about 12 years. The doctor asked what made me come to get a physical after so long, and when I said nothing in particular, he pretended to write on his clipboard "Wife made me come here."
He said middle-aged guys with no obvious health problems pretty much only come to the doctor for one (or both) of two reasons: Their wife made them, or they want Viagra.
It's surprisingly difficult to find the median car price. I just spent 15 minutes googling and could find neither the statistic itself nor a source of the data from which I could compute it.
The best movie I've (finally) seen in recent months was El Mariachi. He made that for like $8K. Assault on Precinct 13 (the original one): $150,000. The list goes on and on. The Way of the Gun, a more recent favorite of mine with a bunch of big actors in it: $8.5M.
Another factor might be exorbitant star salaries. However, I think that's a symptom, not the disease. The real problem is that Hollywood is greedy. They won't touch a $10M film with no big stars in it because it's not likely to make an 8-figure profit.