One thing I know that has changed over the last 30 years here in the US is the reduction of arts programs in public school education. The arts are always the first to get the axe in every school district across America. I have some familiarity with the issues since my wife is a theater director and fine arts director for a school district.
Parents and schools just don't push their kids into the arts (music, theater, art, etc.) like they used to do decades ago. The focus is STEM and athletics. Athletics for college scholarships and STEM for the big engineering payout (🤣). All the people I worked with during my record store days were all art students and almost everyone was in a band. Those stores gave those kids a place to hand out and talk music and who was playing with what group locally. That is gone.