The catalogs cover decades of music, not 18 months. These stats are about art appreciation and related spending, not the uptake of technology. As societies break down, the art that they generate follows the trend, magnified to some extent by simple computer based music production for the masses. So we have to search harder for (what we consider to be) the great art, and be willing to buy it, in support of the artist. Or submit to being targeted with the spotify 'top 10'
Feeding
luminate music market
into google, the link below appears in the list, with dozens of music categories to explore. I look forward to reading some of these, as I always have far more to learn than the crowds I mingle with
https://luminatedata.com/blog/category/music/
Also, the idea that young people are deeply tech-savvy is a bit of a misnomer. Employers are finding that this savvy begins and ends at the smartphone, and 'thumb-typing' and finger-swiping' are not high on their list of job requirements. While applying common sense, having the ability to learn quickly on the job, and being able to finish tasks without constant supervision are important hiring considerations. An HR leader observing a typical gaggle of earbudded teenagers in the hiring line, swaying to the 'hits', might go into convulsions
Cheers