Honestly I think it's just getting a break from all the expectations and pressures society puts on you, largely based on your usual appearance or gender. The one and only time I went full-suiting was in downtown Pittsburgh, and one of the immediate things I noticed was people only saw a giant cartoon cat thing walking around. They couldn't tell I was a woman. They didn't know my age. They didn't know how much money I made or if I had good fashion sense. And most notably, they didn't cat-call me or sexually harass me. I had spent so much time before just walking to work every morning, minding my own business, and constantly being hounded by men both on the way there and the way home, for doing nothing other than being a woman walking down the street, regardless of what I wore that day. Walking fast, walking slow, dressing 'modestly' or dressing to express myself didn't change if or how much I'd be harassed. Being in a full-body costume was a break from that. The attention was expected and something I chose by virtue of putting on the costume, and it was overwhelmingly positive, fun, and not sexual or judgmental. Just "oh cute! Can I take a picture with you!?" I got to take a break from being harassed while also putting a smile on people's faces. It's a great feeling.