My statement is that Human should wear hat on public.
The follow are my reason to suppose my statement.
Have you ever notice where does hair grow? and why does hair grow on those certain area? the reason is simple: they are private and should not be shown. Hair is the nature's way telling us that they should not be share visually. As human evolute from primate, we loss hair from our general body area. This allow us to be friendly and a 'trust'. Without hair on body and arm and leg, you have shown other that you are most open and aren't hiding anything (thus more sociable and safe). As we all the the process of the Evolution, the weaker die, in the point it is hairier die because while everyone are showing their hand, the hairier one still are cover up and couldn't get along with other.
OKay, i think i was a bit off to the point. What i mean is that since evolution have make our body hair disappear, why do we HUMAN still have hair on some part of out body. Those part of the 'important part' i guess. They are special in a way that they should not be shown. An ananlog would be: As open as you can be, you will not give your key to a stranger. It is dangerous and stupid. As the same reason why during the process of evolution, one with full of hair dies, and one with no hairs at all also dies. This left the earth with only human with hair covering certain part of the body.
The 'cover up' was first introduced since the primate to make human indifference. As we all know, hair, unlike clothes, only cover the detail part, where we can still see the whole. Now a day, law specify that we should not discriminate anyone by their race, color, and SEX. When the world wasn't as active as today, there was no race, or color difference, only SEX. and frankly, our ancestor knew there would be a problem with the gender discrimination in the society, so he propose everyone to cover up their difference, which happen to be the place where the hair grow, so everything made sense.
However, have you look at the mirror and discover that the most hairy part of your body is you head. As primate evolute into human, later they discover that the brain in the head is acutally most important part of the whole body, and thus explain the reason why we have hair in our head. And logically it follows that since our brain is so important and unique from each, it should be cover up. As science technology get advance, we are able to indentify who is the smarter one just by looking at the upper head where the brain it. This would cause a great discrimation in work place against dumb people. To prevent it, we have to do what our ancestor do, by covering it up. Reason they didn't practices such is because back in those time, everyone's brain are almost the same. they weren't using much of their brain to do work. Covering our head, also make our head most desirable and safer from information transfered disease. Have a hat on, protect your privacy and not to be call a nerd.
(for those who believe in god, God created human in his own image except those place that is cover in hair. For those who draw, they know that when they come to a part where it is difficult to draw, they just skatch, or shade (draw many lines over it) to make it dark and unclear. So god was having difficultty making human on his own image and created hair over it. And those who doesn't look like God were consider devil since they were told that human is in God's image. This reason make people cover up their part so they can look like god. but never do they know that God's brain are much more difference, much more intellegent than human. For that reason, we have to cover up our head also so we can be closer to god. p.s hope i don't offense anyone.)
Just to be clear of my motive: i don't own a hat store, i am not trying to sell hat. It is the truth!