Im from a tropical country and houses are built with consideration for airflow, such as concrete walls with no insulation, gaps in the roof, etc. Also, days are shorter(no 8 pm daylight). American suburban homes are built with central AC in mind of course I dont expect people to know how to deal with heat without experience living in hot countries.
This is somewhat true for older (say, 1920s) American houses. There’s some consideration for airflow and making sure that the tree shade on the roof creates a strategic sun heat gradient.
