@Linkat,
I'm so old that I used to dress up to fly on an airplane and still have done that, somewhat, ever since. Now I never wear shoes with highish heels, in or out of an airport, unless you call Dansko professionals high heels. But.....
baggy jeans? I love old jeans, especially in my heyday as a painter when I'd have had many pairs of jeans of differing styles, not necessarily in the right year per style. They make pretty good painting 'smocks'. No, not those for an airplane ride, but still loved. Some of mine have had the weathered look from real weathering, as opposed to fashion trend. I've been interested in fashion, to watch trends, but not to follow it myself, thank you. I'm just interested in what kind of design is going on. Re flying now, six years from when I've last flown, if I were flying from Albuquerque to Nowhere, I might wear jeans for comfort, and they might be baggy, depending on the pair I take off the shelf of my closet. Hard to believe someone was put off a plane for that. Do they now pass out style sheets with ticket purchase?