Haya soma mawazo ya huyu kutoka QUORA
Is doing a PhD worth it these days?

Daniel Dvorkin, Ph.D. Bioinformatics & Biostatistics, University of Colorado School of Medicine (2013)
Answered Apr 7
The answer depends purely on what you hope to get out of it.
Do you want to be a researcher? Then absolutely, it’s worth it. You can do research without a PhD, of course. Plenty of people do, and some of them are quite successful. But the research skills you will learn in the course of writing your dissertation are hard to replicate outside that environment, and your defense will test those skills in a way that almost nothing else can. Writing papers is
easy by comparison to standing up in front of a group of people, all of them skilled and deeply knowledgeable in your field, who will tear you to shreds if you can’t prove you know your stuff.
Do you want to be a professor? That might seem like the same question as above, but not all professors are researchers and most definitely not all researchers are professors. Not all professors have doctorates, either, but that’s the way to bet. If a faculty appointment is your goal, a PhD is the most likely way to get there—but be aware that it’s no guarantee. The number of available junior faculty positions is
much smaller than the number of new PhD graduates every year. So the answer here is a cautious yes, but have a fallback plan.
Do you want it for a job outside academia? Then probably not, because (with a few exceptions in computers and pharmaceuticals) most companies really aren’t looking for PhDs. They might hire you, but there’s probably nothing you bring to the table, from their point of view, that someone with a Master’s degree doesn’t. And it might actually hurt your chances of getting hired if they think you’re “overqualified.”
Do you want it for the prestige? Then hell no. Doctoral studies will eat years of your life, and leave your brain feeling like a wrung-out sponge. You could do almost
anything else with that amount of time and effort that will get you more in the way of money, ego, and bragging rights.
I’m glad I got my PhD, because that was the only way to get where I wanted to be. If that’s the case for you, then go for it. It’s a very personal decision, and only you can make it for yourself. Just be as sure as you can be before you start that the destination is worth the journey. (Source
https://www.quora.com/)