re: Why does a certain segment of society always talk on speaker phone?

It is in the same category as when they pull up to a gas pump...windows down...full volume and a vulgar rap song.

The need for attention is so beyond. Ignorant people who need the spotlight on themselves are the worst.

And that said, I doubt you run into any professionals who are talking mutual funds or vacation in Breckenridge on a speaker phone in public. Most who do this tend to vacation in their cousin's boyfriend's god-uncle's in an adjacent neighborhood.

Just a hypothesis.