Yeah, I assumed she was around 48/49ish but since the tone was somewhat authoritative on the subject I was second guessing if this was all newly discovered knowledge. The age range puzzled me too and that got me thinking she was down to under 50 again as I have this idea that those who haven't passed 50 yet but are close to it view 45-50 as some special set of years and after that it's all just one endless mush.
I think if you've always been a bit unadventurous and steadfast, then, the advice not to get too radical probably isn't bad, it's the realm of the classic dressers really. But if you've always been a changing chameleon that moves with the tides of time, then, it is, indeed, rather useless advice. I think the basic premise was continue on as you always did, just be a bit more conscientious and overt about it, happenstance is for the young (not sure I entirely agree with it all but it's certainly a lot less prescriptive).
Poor support humans, ignored until they're of use. I once refused to move (I had paid for my seat and the other seat was crap and cramped) and then had to deal with a person giving me the evil eye for an entire flight because she couldn't sit next to her boyfriend 
Ooh the skirt colours are great, Bani, from your description of ice cream colours I was imagining Neapolitan bright pastels but this is much more you.