“Blurry photos”? Those are just photos with a shallow depth of field. That never went out of style.

I burned a few CDs and put one of them in my car's CD player

It worked but I got hit with "tray error" when I tried ejecting it.

It's been stuck in there since april

I showed them all this stuff before and my kids thought it was lame. Their friends start to listen or wear said things and now it's cool... Kids lol nothing changes.

I'm a Millennial/GenZ cusper and I think its just the desire to go back to a simpler analogue lifestyle. I've also bought a few cassettes from concerts at times when I couldn't carry around a full vinyl the rest of the night

Blurry photos is fine to make an stylistic choice. The 2019 movie The Lighthouse stylistically looked like a 1920s film, before modern music intentionally used bitcrushing, it used vinyl cracks, boomer shooters made in this decade intentionally look like 1990s Doom clones.

When a medium's shortcoming is patched by technology, it ultimately becomes an artifact of the era where it was accidental. Once a few years have passed, it becomes more synonymous with the era than the mistake.

It's not necessarily nostalgia, Gen Alpha and the younger half of Gen Z never grew up without smartphones, so they don't miss the era of poor film photography. Although every generation does this simulation of forgotten mistakes, it's particularly poignant now, where the high quality, perfectly lit, professional feeling photos convey something artificial, i.e. smartphone software emulating camera hardware, faces tuned with filters or outright AI generated content. Even if it's false imperfection, the alternative is false perfection.

Art using deliberate imperfections that were unavoidable in the past is romanticising something perceived as before commercialism, and that's admirable.