But advertisers have next to no interest in reaching the geezer demos.
And, actually, life expectancy has plateaued in the US and is declining in some areas.
Radio advertisers. Still plenty of TV and print advertisers addressing seniors. ("Geezers" is a sub-population of seniors.)
And, as for life expectancy, if you remove self-inflicted causes of death in the current U.S. population such as smoking, drugs, alcohol and suicide the average life expectancy is increasing albeit at a slower rate than in the past.