When it comes to being presentable in public, why do so many now not even bother?

When it comes to being presentable in public, why do so many now not even bother?

I ask because where I live I often see people without any shoes on. I often see people in shops who didn't even bother to change into something more appropriate than their pyjamas, and it seems as though wearing clothes that are a couple of sizes too small is all the rage right now. Whatever happened to style?

Updates
+1 y
I wonder if anyone would object to me appearing in public wearing nothing at all. Do you think I should put that little hypothesis to the test? :)
When it comes to being presentable in public, why do so many now not even bother?
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