Even elevators are disconcerting. I always hold on to something when they start up, because a few will jolt a bit, either starting or stopping.

For me it is the STANDING UP, and moving through space that causes the problem. And uncertain movement.

Standing is already a serious difficulty for me....add moving and jolting, and stepping on or off while moving.....not good.

Hugs, Elaine

Oh,as a kid I LOVED escalators. I was a daredevil and very active. Climbing to the top of the tree, hanging by one knee from the top of the jungle gym. Yeah, back in the day.

Walking on the highest wall....climbing rock cliffs, jumping from the highest step.

Everything kids do.