There's the point: There is a cheap and easy approach to writing an internet article: Compile an arbitrary list of things that people of a specific age (usually 30 or 40) should not wear or do. And be as bitchy as possible about it!
The moral for waste of time articles is: 'If it is bitchy, they will read it.'
Choices of women's clothes or accessories are often taken to task in these articles. Here's the usual suspects: yoga pants, miniskirts, bikinis, Uggs, F-M shoes, knee socks, scrunchies, large hoop earrings. and the like. Here's a representative list of fashion no-nos for women over thirty. But guys are not immune: here's an article about what guys over 30 should not wear. These articles are simply subjective opinions; there is no hard and fast real life rule.
Well, guys: you might not emulate Johnny Depp in your sartorial choices.
But in general, I'll channel the Second Amendment purists on this one: They can take away my scrunchie when they pry it from my cold, dead hands.