I think some people aspire to be nurses because of a hands on/critical thinking combo. So I don't think some people are "built" to be nurses.
Bedside has become rather robotic with a chicken with head cut off pace. Ratios and acuity are difficult to say the least. So it is not the profession per se, but rather the job. There are people who are more ill, more complex and limits on the time they can spend in house. So that leaves nurses to be working a practical miracle with a deadline.
Back in the day 20+ years ago, there were fewer choices for women. Even a bit longer than that, there was getting married, being a teacher, a nurse or a flight attendant kind of culture for some. So there's a level of frustration there.
Equally, at that same time, a hospital job was a really good job to get. The pay was amazing, lots of staff, really good benefits, room to be sent back to school, all around employers were invested in keeping nurses, and keeping nurses happy. Not so much today. And changes are not to the patient's benefit, even though the powers that be say it is. Wolves in sheep's clothing. And any number of us who have been on the job 20 plus years can see right through it.
By then, you are stuck between a rock and a hard place. Financial responsibility, losing seniority and significant pay be going elsewhere, conditions the same or worse....and the ever present fear that people don't hire bedside 50+ year old nurses who have put in 25 years. They all want to grow their own for less money and no expectations/preconceived notions. But then you put a new grad in a place where seasoned nurses have been for a long time, and all heck breaks loose. New grads do not have the kind of instinct that was expected of a new grad 20 years ago. But you are playing with sicker people for less time. The days of Gram in the bed for a month because of her "failure to thrive" is over, vs the complex patient with multiple comorbidities that you have 3 days to fix and discharge and you best not have a readmit for the same thing is alive and well.
Yes, to be paid well is not a bad thing. But to be paid fairly with a acuity level and patient load that makes sense and is safe, not having all of this strange passive aggressive bring all your personal problems to work weeks even better.