Normal non-tech people were ripping CDs with iTunes. "Rip. Mix. Burn." was a nationwide if not worldwide advertisement.
All of this still works, if you have a CD drive.
If you're going to bother buying a cassette player... what's the allure for that over a CD-R and a basic CD player. CD players in cars are going away, but they're still around in houses and inexpensive small boomboxes.
But then... what's the allure of that over say any old audio player that takes SD cards or just a USB stick. A lot of modern cars and also stereo receivers and TVs will take a USB stick and play files from it. These players are incredibly prevalent and very easy to use. And loading the music from a computer or even a tablet is easy.
Of these three, cassette is the absolute least likely to be available anywhere.
You can still have the experience of making a playlist and even putting the files on a USB stick for someone. Importantly, they can actually play it on their own listening device.