"the 'wacky' short red hair with a spiky fringe for women 'past a certain age'"
Ah snap 50+ women all over (West) Berlin have that look (violent red, black or peroxide blonde). In the East they have a bob.
Other than that every woman in the west part seems to bleach her hair as blonde as it gets. I don't get why this is. Must be the beauty ideal, blonde = beautiful. In France I think they do like that ivory skinned, dark haired, dark-eyed look and it is considered desirable, so maybe that's why they're less bleach-obsessed.
I'm dark-haired and when I go to German hairdressers they always want to bleach it. They're totally astounded when I say, no thanks. "But you have BLUE eyes!" Like how can you have blue eyes and not blonde hair? Err well it's a contrast, right? I was flaxen-haired as a child so I know it can suit me but I think I look dull all in pale colours.