I read through a few posts today that made me think about whether you should dress in a way that is age-appropriate. For example, whenever I wear chinos with a shirt tucked in and a different coloured blazer, I inevitably look like a bit of an old man (I'm in my mid-to-late twenties).
So as I do, I blogged about it: http://greedanddisgust.blogspot.com.au/2013/09/dressing-your-age.html
Not sitting on the fence with this one: I reckon it is important to dress your age. Having said that, I would be interested to read your thoughts on the matter.