This awesome insight comes from the (perhaps literally) insightful folks at Pornhub...
Among male visitors to the Pornhub site, 'Mature' is a more popular search term than 'Anal'. Meanwhile, walk into any ad agency and you're 20 times as likely to meet an asshole than anyone who is middle-aged. The inescapable conclusion? Even porn addicts are less ageist than the advertising business.
Go ahead, pretend that you don't know what I'm talking about, but in the same report, Pornhub points out that the average American visits their site over 120 times per year. If you work in the ad business and really don't know what Pornhub is, you should be fired, because you don't understand the culture you're selling into.
But seriously, folks... 'Mature' is the #3 search term for male users. And it's in the top-10 for female users (who account for over 1/5th of all visits, interestingly.) What does this mean? It means that even the pornography business is less ageist than the advertising industry.