My confusing journey to picking a grad school

[rlw74]

So, just throwing this out there...I have quite a few friends and acquaintances with PhDs. One teaches high school chemistry. She got a PhD in the sciences. Her masters was built into the program. Another friend is in the same boat except she doesn't teach, she works in her field. Another guy is a chemist and works in his field. The others I know are all professors at colleges. None of them have PhDs in education. They all specialized in one field with a masters built into the programs. They have had no issues getting teaching job in their fields. Even my science friends who work in their fields can teach if they chose to do so. Wouldn't it open up more doors if you just got a couple masters and for your PhD specialized in one subject related field that incorporated one of those masters degrees? I don't see where for teaching or freelancing you need anything beyond a specialization or two. It sounds like you would be adding more time, not less to go in so many different directions. Plus, it seems like your resume would look a little scattered, like you couldn't make up your mind, so you just got lots of school instead of work experience. Maybe I'm off base here. I've never considered a PhD so there may be aspects I don't understand. However, just basing it off the people I know, it seems they all knew exactly what direction they wanted and singularly focused on that one area.