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You remind me of my aunt (now deceased). She never traveled casually dressed — always a smart looking suit, dress shoes, a hat and gloves (white gloves in summer). Once I went to California to visit her; she didn’t say so, but I could tell she did not approve of my jeans t shirt and sneakers.
The original topic had to do with airports today resembling bus stations. I'm old enough to remember when flying was considered special, people might not dress up to the extent your aunt did ... that went back to an earlier era in commercial aviation ... but people from the era I remember did dress up somewhat ... none of the flip flops, shorts and tank top crap you see today in many airports.