Caution - old fart story incoming >> In my mid teens in the mid 70s, no-one, even my parents, were into 50yo music from the 20s - even if it were good, it was unlistenable given the poor recording quality. Today, anyone can throw on 50yo+ music from the 60s/70s and get into it since the recording quality of 50yrs ago is often still good enough today (some may say better in some cases). Irrespective of musicianship and songwriting, recording technology started to improve drastically around the mid 60s such that there started to be diminishing returns after that, on how good the sound could be, so the music started to become more and more timeless from recording quality standpoint. Take a listen to the stuff being posted in the 60s thread - 64-65 or so and earlier, there's some great tunes but for the most part the recording quality is so far from what we know now, that it's hard to enjoy it at least for me - but - 65-66 or so, and later, the tech and studio techniques really get rolling in leaps and bounds such that many records done in the mid-later 60s still sound great even by today's recording standards.
Many of us who grew up in the 60s remember how, near the end of the decade, everything turned to color. The advent of color TV was so impactful that us boomers born in late 50s / early 60s tend to think of our childhood memories in black and white up to certain point, and then, boom - everything went to vibrant color! (tho in our home, a bit skewed as the color balance on our Electrohome made everything look like bright green and pink cartoon characters lol!). Music made a similar turn at roughly the same time: I remember my earlier childhood with a backdrop of mono scratchy sounds coming from a crappy speaker in the corner, then, boom!, clear stereo sounds that surrounded and grabbed the senses from two sides, not to mention, the discovery that distortion could be a sound one wanted to hear.