The whole idea of 'avoiding the signs of ageing' is sales generating crap.
What are the signs of ageing?
Because it's only ageing skin which seems to be demonised, not other 'signs of ageing' like wearing glasses, hair growing out of your ears, wiry eyebrows, not being able to get a get a strong erection, overall your body getting stiffer, getting up in the night to pee, toenails getting thicker, growing big ears and noses...all of these and other 'signs of ageing' are ignored.
Only female facial skin is the focus of 'signs of ageing'. We're all trained to only think of that when we hear the phrase.
Even when she recommends sunscreen, it's just for the face. No mention of hairline, ears, hands, calves (unless you wear trousers), feet etc. We're not exhorted to 'protect any bit of skin which sees daylight' when she's banging on about sunscreen - always the face, and only the face.
It's a stupid position to take, because everyone gets old. Unless you intend to do yourself in at 30, in which case there are better ways to spend your limited time than worrying that some unspecified, imaginary person might think you are 'old'.
And at the same time, we're also told to ignore these unspecified, imaginary people who might judge us for being flamboyant/different/gay, etc etc.
But somehow, we MUST concern ourselves with what they think when it comes to female facial ageing...