DID I MISS SOMETHING?...

So this week in London every female under the age of 35 is apparently wearing, only and exclusively:

baggy short shorts over leggings/tights,
the flat '80s boots everyone's been wearing for three years,
a peacoat,
shaggy long hair.

What happened? Did I miss the time Kate Moss wore exactly this? Why is everyone dressed the same? Did everyone get caught out by those leggings that are really just