Volleyball Footwear On A Warm Sunny Day, What Percentage Of People Participate In Activities Barefoot In The Grass At A Park?

On a warm sunny day, what percentage of people participate in activities barefoot in the grass at a park? - volleyball footwear

I speak of friendship, leisure activities such as volleyball, soccer, frisbee catch, too, comets, etc. - not a real sports standards require that the shoe.

In Florida, where I live, this percentage is quite high. I wonder whether it is high in other areas.