Why do so many Polish girls dye their hair BLACK?

I'm talking about fluorescent colors - blue, pink, bright red etc. You don't see that type of sh1t in Poland. In the west its more common especially amongst the far left barista/professional protestor basement dwellers. But yes most Polish women dye their hair but they choose a color that's at least a common hair color. Most the women I know dye their hair blonde though, not brown/black or red.

And some quite extreme shades of that too.

Shoe polish black hair was very common among middle-aged and some senior polish "Panis" in and around Hamtramck, Michigan years ago. I don't see it as a trend. I think it is just a Polish thing.