It is. But not 'just'. I, for one, am not at all surprised that once kids become adults in spite of the abundance of sources of music available to them which were not available when we were growing up the music they want to download copy or stream comprises to a large extent of the music from the 50s to the 80s. In my case that is not because I played it all the time because, frankly I didn't.
Still, I suppose we'll see who stands the test of time better. I'll make a prediction which, if you are still around, you can hold me to. Nobody will remember or know Ed Sheeran's music in 20 years time but the teens at that time will still know and enjoy the Gods and Goddesses we grew up with.
I do agree….I think that when you’re young you do tend to listen to one kind of music, probably what is popular at the time, and get ingrained into listening to that and that only.
Also a factor I reckon is that where you are in your “life’s journey”
For me it was growing up with punk and 2 tone, moving on to Reggae and original ska. Then came my “Oí” phase, then dance music…whereas for the last many years I’ve opened up to anything from Japanese hardcore to Motown soul…..Opera to Jazz…..Country to Grime.
You might be right about Sheeran…..but like him or loath him, he does write a catchy tune and has got some enormous talent.