1. I chose the field for a number of reasons. I came into medical school being interested in neurosurgery based on my experiences in neuroscience research in college. Knew I was looking for a specialty to beat it, and it never happened! I was sure I wanted to do something surgical or procedural, and something that would continue to provide evolving challenges throughout my career. I also found myself really comfortable with the residents and faculty mentors I found, and knew it was "my people" after working with them over the years.
2. The reservations I have are pretty similar to most of my friends who are heading to neurosurgery (or most residencies). Namely, that residency will be rough, and you choose a specialty with as much confidence as you can based on several months of rotations. There is always a chance you'll find out you don't like your specialty as much as you thought you would. Luckily, this is still rare, and most people are happy in their specialty and program. On top of that, there is plenty of associated anxiety about being a REAL doctor in a few months. Yikes. Hopefully that will dissipate as we all get settled
3. I would say the support has been mixed. From my family and close friends, the support has been incredible. They all expected me to do something intense, it just fits with my personality and what I've enjoyed over the years. Those in neurosurgery have largely been incredibly supportive, even with working as hard as they do, most seem to genuinely love their careers. The most disparaging remarks I have heard are from those in medicine, but not in neurosurgery. Attendings on my medicine rotations loved to tell me what a dumb decision neurosurgery is, but you to each their own!
4. This is a fantastic question, and I think something that has changed (and will probably continue to change) as more fantastic women graduate from medical school. Medical schools in the US are now >50% women. So, if you want to get the best and brightest in your specialty, odds are a lot of them will be women. Neurosurgery has really struggled to remarket itself as a palatable specialty for women, and the length/rigor of the residency can deter those hoping to have a better work/life balance. That being said, if you decide to take the plunge and pursue neurosurgery, there are a lot of programs who really want women, and are trying to create a more gender-balanced program. Some programs have been more successful at this than others. I definitely got the impression that my being a female made me a very appealing applicant this year. With that in mind- being underqualified will in no way be compensated for by your gender (the women I know who matched this year were BEASTS)!