Well I'm just a few years younger than Kate, and I have to admit i was expecting more of her style wise as she got older. Kate didn't used to have a "trade mark", she was inspiring to me because she always marched at the sound of her own drum, and her fashion choices were unexpected.
Now she's clearly stuck in the Ultimate rock groupie look, yes it was the look that gave her the success than she now enjoys in popular culture, and at the Doherty time sometimes she looked breathtaking, but there is always the risk she will turn into a relic of a certain time. And I always thought that Kate was too vibrant for that.
And well Thank God people do change, I agree with you that you won't start hating the things you used to like just because you are older, but I do hope I'm not the same now as I was a 25. I developed, learned thing, an absorbed a world of influences. All of that i hope is reflected on myself.
Of course Kate is very very pretty and her body is still really young, she can wear those clothes. And of course she can dress whatever she wants, but this is a forum about style, and Kate for me used to be inspiring, certainly not anymore.