It's a very demanding job, physically and emotionally, as well as, specialized training and liability since you literally have people's lives in your hands. You have to deal with people at their worst. Pay is quite high, and it's challenging to get into a nursing school program, but still only ~10-12% male (and about 1/3-1/2 are gay). Social dynamics are really different in nursing from school, to work, to supervision and management.