In my local AMSA group, I was introduced to a gentleman who was over 40, previously a carpenter, was going to major in French while doing pre-med, and openly told us all he was going to be a peds-cardiothoracic surgeon. I kindly asked him if he had given any cost benefit analysis of the idea that he wouldn't be a practicing surgeon before 50, and the cost not just for him, but society in general for training such an old surgeon and clearly this thought was just occurring to him. We've all heard way to many cases of pre-meds saying at a young age they plan to pursue some of the hardest careers to achieve in medicine, only to be on SDN a year later asking about back up plans. So take my point with some perspective and a glass of humble tea.
I would akin the OP's post to a high school football player saying they are going to play in the NFL. We all jest and jeer because it is highly improbable with all the pitfalls that so many of us find on the pre-med route, but there is something courageous about openly admitting to people (albeit this is online so maybe not as courageous) you want to do something that has a high rate of failure.
One of my biggest pet peeves about so many pre-meds I know is that they apply to med school and still will never tell you they want to be a doctor because if they get rejected, somehow they think they are considered a failure at life. I know pre-meds for all four years of undergrad who never once said they wanted to be a doctor to anyone until the magic interview day or acceptance and all of a sudden, they have wanted to be a doctor since kindergarten. I do believe they wanted the profession, but there is this stigma that because of the failure rate of med admissions, and competitive residency, many pre-meds won't say openly they want to be a doctor. For me, its practice. Every time someone asks me what I'm doing with my life or going to school for, I tell them I'm applying to medical school. I have since the day I decided to be a doctor. Even when I am doubting my abilities, I keep saying it, and in many ways I made that a self fulfilling prophecy. So OP, if thats what you want to openly admit to wanting, and thats your goal, kudos for owning it, now go back it up in college. After 3 years of college, you may be writing a Personal Statement or answering an interview question saying you want to be an anesthesiologist, so you may as well start getting used to talking about it.
