The net is littered with these kinds of lists written banning all sorts of items for 30+, 40+ and so on... If one were to put together everything these lists ban, I guess after 30 women would have nothing left to wear!
There is a raging discussion online on whether Leggings are Pants or not complete with infographics. I'd have to hum lyrics from one of my fav songs as a possible solution to this discussion: "If it makes you happy, it can't be that bad!"