

This is what people always seen to ignore about YouTube. It’s not just another database frontend to use generated content. That is definitely part of it, but behind that is probably the largest public facing content library on the Internet with a full video recoding infrastructure attached. YouTube is the platform for which I understand that they need to monetize.
Sure, nowadays there’s also tiktok as another big video service. But I like to think that YouTube is way bigger in most metrics.
The CD wasn’t really suited to be played Mobile (though I did have a portable CD player). It should rather be compared to vinyl in that regard.
I think tapes are great because no portable audio player ever came close to the Walkman regarding its cultural impact. The fact that anyone could record tapes opened up a lot of creative options.
For properly mastered music to be enjoyed at home on a potentially expensive setup, the CD was very close to perfect.