The beautiful thing here is if you are not lazy and prepare your feet with thick callouses, none of this is even important. You can pay your dues before you report for training, or you can do "whatever" and hope that will work. I can tell you right now, "whatever" doesn't work.
Cleaning blisters is extremely painful, and that's putting it mildly. Failure to pay your dues before training will result in "paying the price" on sick call.
Training is hard enough without any foot problems, let alone with them. Prepare properly, it will be one less thing you have to worry about.
I guess it's ok to carry moleskin for the "other" guys, but it's nice to know you won't be needing it.