@orangeleavesinautumn I agree with you that it is sexist crap that it is always women that are targeted for simply ageing naturally, and I also hate the beauty industry for that and the damage it does to women and girls.
That said, you are incorrect about what you're saying about moisturising. Our skin is our largest organ, and is the barrier between our insides and our outsides. It's job is to basically hold us together, and to keep bacteria and viruses out. As part of that job it's integrity needs to be high. It needs to be able to regenerate itself quickly, to be able to heal tears and abrasions quickly, and to deal with oxidative stress from pollution and sun damage. It has to be able to maintain its barrier function.Only the upper layers of the epidermis actually renew frequently, and this slows down as we age.
Maintaining proper barrier function of your skin is very important to our health, and part of that for a lot of people means moisturising.
The type of moisturiser you use does have a big impact, with more expensive often not meaning better. Even just putting a thin layer of vaseline on your skin when you're damp out of the shower can help your skin, particularly on areas that are most exposed (ie your face).
This is an interesting enough paper.
www.ncbi.nlm.nih.gov/pmc/articles/PMC5849435/
Also, and i hate to be a dick about it, but men's skin is different to women's, it's thicker and does look different to women's skin. It doesn't mean I think women should be marketed all kinds of expensive crap to be sexually appealing to men, but it is just something to note, another of the physical differences between the sexes.
I moisturise my body after a bath, my face every evening after washing it (to get the sun cream I wear during the day off). I view taking care of my skin the same way I view taking care of any other body part.