I do a lot of open houses on lakefront properties and many times people will come in by boat and in their swim suits...it can be very entertaining at times to say the least.
I am in a second home market and while most of my clients wear suits in their business life they are shorts, tank tops, and flip flops people here and you certainly can't judge a person by their appearance.
Funny to hear that and picture it too. Changes in attitudes, changes in latitudes.
But your advice is very good for life in general, especially if you are in sales.