In my view, choices about what to wear after 50 or 60 comes down to finding something that fits. My shopping experiences are often very frustrating. I'm a size 16, of average height and evenly proportioned, yet a size L or even XL if often unattractively snug and or even downright too small. To illustrate, I own three (pullover) sweaters sized Medium, Large and XX Large respectively. Despite what it says on the labels, all three sweaters are the same size and should have been classified 'Large'.
To your point Monica...I like the French brochure you describe. Too often, older people are stereotyped as being technologically challenged or impaired in any number of ways. E.g. The old lady needing help to cross the street, 'old grandpa' scenarios where there's always trouble recalling, old person who drives badly, lady who falls and can't get up....too many negative stereotypes to list here.
We may have to start a campaign of our own by posting more positive images on social media. Some of us out there are still dancing, running, ice skating, playing sports. One of my good female friends aged 71, just ran in the NY Marathon (completed sixteen miles out of a twenty six mile marathon). I've seen more than a few seniors racing cars, sky diving, zip lining etc. ...We've also had quite a few prodigious musicians, mathematicians, scientists, writers, senior Nobel prize winners and some financial wizards, all in their eighties or nineties......you get the gist!