Beach and Carpet

The link below makes the point that many beaches are often not very clean, as they are frequently soiled by animal excrement.

It is remarkable that people will happily walk barefoot on beaches that, despite looking clean, are contaminated by animal excrement, rubbish, pollution and other filth and yet will make a fuss if they are asked to remove their shoes and go barefoot on somebody's clean carpet or shiny hardwood floor.

Do people really think that beaches are more hygienic than floors that are cleaned regularly?