PERSONAL BODYGUARDS FOR YOUR FEET
We have to assume that like the Emperor before him, Supreme Leader Snoke doesn’t actually need guards to protect him, and that he could very well handle himself against any possible threat. Because you don’t get to be Supreme Leader of the First Order, and stay that way, if you’re vulnerable to attack. But still, we’re not about to go crossing the Praetorian Guard in any case, because we really don’t want to be on the wrong end of those electro-plasma blades.
The menacing red-clad Praetorian Guard protect Supreme Leader Snoke, so they’ll have no trouble protecting your feet. Why would your feet need protection, you ask? Well, maybe like Snoke, they don’t actually need it. But wouldn’t you feel better having these guys on your side, intimidating anyone who tried to mess with… your feet? After all, you can never really be sure what that pesky Resistance is going to try to pull next.