If you're going to get a Master's Degree in Nursing, why not just simply study to become a Doctor instead?

Honestly I study nursing and that's my thought too 😅 but in some countries (well actually in mine, don't know about the rest of the world), you cannot JUST study something, you have to take particular exams in order to enter university. When you already have a degree and want to study something else, these exams are very difficult (depending on the department as well). So you have a high chance of failing while you have already bought books and probably had some lessons. Additionally, medicine is 6 years, plus you have to be a rural general practitioner for one year. This exam will put you on the second year, but you still have 5 more to go and a year of practice. So compare all of this to just giving 2000€ for a master's degree which can be two years. Also, some people don't want to become doctors, they like working as nurses, they just want an extra degree in order to be more attractive to employers, or just want to evolve in their own field.

Nursing a career with a lot of responsiblity and is a highly respected one. It is a stupid doctor who doesn’t accept advice from his senior nurse. Hats of to Nurses. They do a hard job many people are unwilling to do.

It is not the same. Completely different tasks and set of skills, and training, and less on campus requirements depending on country.

maybe they don't want to be a doctor

Cause you want to be a nurse not a doctor.
Cause someone has to be the nurse, if theres no nurses then everybodies fucked, they do the dirty work and cop all the shit.
Not just about money or status, sometimes doing good is enough for a person

Time.
Four years to become a fully registered Nurse.
5-10 years to go from scratch to Foundation.(5 years)
Then vocational.(3 years)
Then specialism.(5 years) to become a Doctor.

doctors are 8 years of schooling plus residency , then internship into a specialized field which can be another 2-4 years, and that’s even if you are lucky to get into medical school at all...
You can actually become a registered nurse in 2-3 years and work/gain experience as you get your masters...

Not having attended either, but I'm sure they teach different things (even if the required education overlaps in ways). I've certainly met doctors who have bedside manners who could learn from a nurse? Don't know of the correlation between, but I wouldn't be surprised there is one. It would be like asking why a social worker why they didn't study to be psychotherapist, they knew their attributes and measured them especially in what that had keen interest in?

Doctor is a much longer, more expensive road. And perhaps the person would rather be a nurse.

Because to become a doctor here there's a quite strict entry test.

I[i] think [/i] the program to become an MD is more difficult and some people want to become better nurses.

https://nursejournal.org/msn-degree/25-best-reasons-why-to-get-a-msn-degree/

I’ve had the privilege of seeing nurses in action. Doctors are great and I appreciate them. But seeing nurses care for the patients is unbelievable.

a million years of residency after med school maybe

Absolutely.

Because they are two very different skill sets