We recently dug out my portable cassette player (Not as small as a walkman, takes D cell batteries) so my daughter could listen to my wife's Disney cassettes from her childhood in the early 90s. I was amazed how a 5 year old immediately figured out how to manipulate the tape player and flip over cassettes etc. I suppose it was similar for me at the same age. We even found a NOS Disney cassette on eBay that my wife didn't have.
The funny thing is, even though I'm just about old enough to have bought a few chart music cassettes when they were a contemporary medium, I don't own any cassettes and I only had the player because I bought it on eBay to experiment with tape degradation for music.