Ordinary people dressed better when they were going out in public. Modern America is composed of slobs.
I put together a slide show when my mom passed away. Born in 1918. There is one photo of her dad and the three other daughters at the park. He is wearing a suit and a white round flat-top straw hat (late 1920’s). Behind them are three men walking. Suits and the same white hats. (Just looked it up - called a “Boater” hat).