There's a difference between saying older demos don't respond to any advertising vs ad agencies aren't interested in older demos. We know that older listeners still use Radio. You have said older demos don't buy stuff. They aren't swayed by the sales pitch. It takes too many ads to convince them to buy a product and isn't profitable.
Older consumers have several qualities that make selling to them different.
First, they have more brand loyalty or brand preference. That means they "have been using 'Stiff & Grungy" toilet paper for 30 years" and they won't try anything different because S&G is an old friend. The older people get, the firmer that most traditions are. And many seniors, after retirement, don't risk money on the unknown as their finances are restricted.
Second, many products are not designed for seniors. Scented products don't smell like traditional ones, and seniors don't always like them. Same with colors, sizes, packaging, etc.
Third, seniors are usually empty nesters and don't buy as much. If you think of why beer brands buy only men and often only sports, you can see why targeting the biggest consumers is a general practice; whey spend to reach a woman who drinks one beer to be sociable when the hubby pours down a coupla' six packs in a weekend. Same goes when consumption is analyzed for seniors... advertisers want to swim in the bigger pool.
Fourth, some seniors are on very limited income, so they don't do any impulse or experimental buying at all. And some are aged to the extent of not being interested in new "stuff" of any kind.
You have said AAA formats won't work because it's too hard for Radio to put out a quality product. You need skilled programmers and sales people who care about the product. Passionate listeners don't translate into client customers.
I did not say that. It is hard to do AAA formats because the rock base is shrinking. If you look at the Every-10-Year studies by Edison (I hope they have one for 2020) you see that rock is really shrinking as the mood and ethnicity of America change. The AAA format is dying because of declining numbers of rock partisans and in younger demos due to fragmentation of tastes where the format can not be broad enough to get decent ratings.
It's all just too hard. With minimal effort, you can take a 70,000 Watt station like the JACK format is on and get a 2 share. Or how about ALT Buffalo? No ratings or revenue...
Remember that radio revenues are off, in inflation adjusted dollars, by over 60% since 2005. Some is due to new media, some is due to the 2008-09 recession and some is due to advertisers who just don't want to use "old media" so that they can be seen as up to date.
Radio is not a "build it and they will come" proposition, and it has not been for nearly as long as I have been in radio. It is "build what advertisers want and make it as good as or better than most and then work hard and you can sell some spots".
In many countries of the world radio is healthier than in the US because long ago they created national "stations" using many, many transmitters, repeaters and frequencies but with a single origination point and their nation's best talent. It is efficient, listeners love it and that is why in so many places radio is better off than in the US as there is a good enough profit to sustain great programming.
Before the pandemic, I had begun work on a new national Top 40 in Bolivia. They were going to start with 37 main transmitters linked by satellite and with a plan to add low power units in many more smaller towns later. They would have one studio in the largest city, and some sales offices in three major cities and that was it... but they wanted to be live 24/7 because the economic model would sustain it.
Somehow, US broadcasters did not get the memo...