I am a 30 year old career changer so this will reflect my own thoughts.
When I went to college I was dead set on becoming an anesthesiologist. My best friend was going to be the surgeon me the anesthesiologist and we were going to start our own practice and life would have been good. The more and more I was going through college the more and more I realized I didn't want to go to medical school, so one day I said the hell with it. My best friend is a a surgeon (orthopedics) and I can say I do not envy his life at all. He bitched at me for 4 years saying I should have gone to medical school with him, and then he hasn't had any control of his life since he graduated top 10% of his medical school class because of the matching process and residency requirements. He works 80 hours per week and I am sure he goes over that and doesn't log hours. He cannot walk away from work and is always on call. He is married and doesn't spend much time with his wife because he is working. Once he gets done with his 5 year program making $40K per year he has to do another 1 year fellowship making $40K if he wants to stay in Louisville, KY. If not, he already has job offers. He will start out making about $400K per year but he is married to his job.
Pharmacy - I chose this because I can help patients in a why that I find to be interesting, I will work 40 hours per week and earn around $100K starting out. I am married with a 2-year old son so I can still be a family man and leave work at work. You earn a solid income and you have work-life balance, which is what I want. Remember, I've never heard any man say he wished he worked more on his death bed....just sayin'.