Flagpole sitting in the 1920s and 1930s

The transcript discusses the phenomenon of flagpole sitters, a group of individuals known for their endurance and strong foundation. These people would sit atop flagpoles for extended periods, eventually gaining public attention and becoming public figures.

What kind of foundation was necessary for the flagpole sitters?

What does the term 'public figure' imply in the context of flagpole sitters?