Mascot costumes limit your senses.
The very few times I’ve worn such things (I’ve only ever built one costume) I couldn’t see, and I couldn’t use my hands to do much more than wave or make rude gestures… much less take the mask off myself. A nice periscope system in there would have been a nice thing. And a fan.
I’ve known two professional mascots and a few amateurs who’re good at it. They don’t seem to have many problems with the costumes… firing T-Shirt cannons and jumping off mini-trampolines to do backflips while slam-dunking basketballs…
… come to think of it like that, it was probably just me and my lousy costume design that caused the issues I’m making fun of in today’s cartoon.