I personally find it ironic that someone who states they wear oversize pajamas for travel says that maxidresses shouldn't be worn because they're from the 70s. But whatever
I rarely wear skirts or dresses for travel - I want to cover my parts no matter how I'm reaching or bending, don't want a long skirt to drag or get caught in suitcase wheels, and I don't want bare skin on airplane seats....The couple of times I have worn skirts/dresses through security, I didn't have a follow-up pat down - but my data points are few and far between....