I would argue that if you know for sure you would not be happy in one of the less competitive, widely available primary care-oriented specialties (FM, IM, peds, or psych), then you should not go to medical school at all, particularly if you are a nontrad with competing life priorities (read: family). Procedural specialties like EM, gen surg, OB/gyn, and anesthesia are not off the table for the energetic and motivated nontrad, but these are not specialties that typically allow one to "dabble," since you need to work a specific number of hours to keep your procedural skills up. As L2D alluded, procedural specialties do not tend to be family friendly either, since many of the hours worked by these specialties include nights, weekends, and holidays. Not that they can't be good choices for the right personalities (including the right nontrad personalities), but I would really think long and hard about undertaking these kinds of paths if you're a nontrad with a family or otherwise someone who is looking for "work-life balance."