One of my “students” asked: What’s the deal with guy’s wanting to lick dirt from my shoes?” Can you help her understand?

https://preview.redd.it/i9y4033oe97g1.png?width=300&format=png&auto=webp&s=d94d1caa733aa243a98b00f5bd2baa9af2c36a28

I’m a retired domme from the 20th century, but I love helping out my younger students. Four different friends ask me: “Why do guys like to lick dirt off my shoes so much?! “

At the bottom of my heart, I think of shoelicking as “wholesome”, I’ve always loved letting my peers lick my shoes. But for dommes who don’t “Get It”, could anyone explain the appeal in ways a newer domme might get?