Spectacles and baseball caps as fashion accessories

Why wear your specs on your head?

I've been fortunate in never having to wear glasses for anything other than reading, drawing and painting. 

I do of course occasionally wear sun-glasses. But whether using reading or sun-glasses, I avoid doing what the bloke above is doing - because, unlike him, I've still enough hair left that it would probably make the specs greasy and in need of a clean.

Yet these days, for no apparent reason as far as I can see, it's become very fashionable for men and women of all ages to rest their glasses on their hair when they don't need them.

Does anyone have any idea why this is?
Is it another pointless import from the USA?
If so, what prompted our American cousins to start doing it in the first place?

What about baseball caps that point backwards?

                      

These young man are Americans, so it makes sense that they might want to wear a baseball cap.  What makes no sense to me that they're wearing them with the peak pointing backwards.

I know that baseball caps have become fashionable here in the UK (but have no idea why).

I also know that a lot of our youngsters have taken to wearing them back to front. In fact, I've a young neighbour who never comes out of the house without wearing his baseball cap the wrong way round  - regardless of whether it's hot and sunny, pouring with rain or cold and snowing.

A few years ago I blogged, to no avail, about why we Brits make so much use of baseball metaphors in presentations and business-speak (standing up to the plate, getting past first base, hitting a home run, etc.) when our national summer game is cricket, not rounders with a hard ball on a big field.

Now, the big question nagging away at me is: why so many men (of all ages) prefer US style baseball caps to traditional British headwear.

A few years ago, another neighbour of ours went skiing in the USA and told an American in a lift queue how much he liked his baseball cap and asked where he could get one that pointed backwards.  When the American aid he'd got it at the local ski shop, my neighbour went there and asked if they had any backwards-pointing caps.

The shop assistant was serious and apologetic:"Sorry sir, but I'm afraid we only stock ones that point forwards and I'm not sure where you'd get one of the type you're looking for."

Now even outstanding cricketers like Kohli sometimes wear baseball caps

India's cricket captain Virat Kohl with  baseball cap (and beard)

                                                   

Proper cricket cap worn last week by record-breaking 

 former England captain, Alistair Cook  

All of which is to ask: why all these things are happening and happening at the same time?