I give props to anyone who can do this workout, or any disk work, with shoes on. I can only do work with them while barefoot. Like someone else said on here, the toe cramping + disks don't mix well! But then I do all of my Cathe workouts barefoot, so I'm used to it. Didn't Cathe do this workout in relatively minimalist shoes? Slide 'n Glide is fun, but I tried using the disks once with shoes on, and there was no way I could have completed the workout if I hadn't taken them off. But then I never liked anything under my feet that made me feel insecure- high heels, step ladders, roller skates.
I admit it is a weird feeling to kick off the shoes for training at first, and it will take the Achilles tendon and feet some time to acclimate. I do kind of miss the feeling of buying cute socks and shoes. However, I doubt I'd ever go back to training in shoes regularly again. Particularly with step aerobics, training barefoot helped me progress SOOOO much faster! My long-standing knee pain disappeared when I went barefoot, which amazed me- I always thought shoes protected the joints. My feet looked stronger and more shapely after training barefoot for awhile. I get less hot overall while exercising because my feet are free, not stuffed into socks and shoes. I save money on not buying shoes and socks (as long as I don't give into the temptation to try working out in shoes again!)
I don't necessarily recommend the barefoot thing to everyone. My feet/ankles supinate and I think (but don't quote me on this) that it is more common to overpronate. My arches are a little on the flat side, although they've improved greatly in the last year; weight loss plus barefoot training really helped them. I did a
lot of mobility and conditioning drills in the first months of barefoot training to improve arch strength and flexibility, ankle dorsiflexion, and balance. Also, I train on a carpeted floor. I'm working out in my bedroom, so I'm not in much danger of picking up any germs that aren't my own. (I wouldn't train barefoot in a public gym. Ew.)
So I'm not necessarily the norm...But maybe considering training barefoot, even if just for disk work, would help.