I have seen the ridiculous matter of my elder daughter (Inas) slogging away, reading for the Common Entrance Test (CET) to gain entrance in a Medical College, and then, changing her mind a few weeks before the exam and finally, once the results were in, she switched over to a three-year course in Hospitality Sector (hotel management, catering and tourism). Initially, my wife and some other near and dear ones protested against her this decision, but later on, things became all right. Inas has begun to well and truly like the new line of studies. Doing projects, going for "waitings" - i.e. going to wedding and other functions where her friends and she wait at buffets to serve the guests - and earning money at each of the waitings - is something that she has begun to not just adjust with, but also enjoy.
Having said that, let me also say why she shifted away from a career in medicine: the following things repulsed her: a long duration of studies, which can stretch to 8-10 years if one does even basic post-graduation; or, to 11-12 years if one does Masters in a super-speciality; the prospect of very heavy books and very serious studies; the very idea of leaving social duties and being available to one's patients for emergencies at all hours of the day (or night); the requirement to stay in student hostels for 6 months per year or more; and finally, the fact that one doesn't earn anything till the entire course is over and internship has commenced (thus, after 5-6 years of joining). In addition, if one studies in Maharashtra, one has to compulsarily serve a rural area for one year after completing the internship, or pay a penalty of Rs. 10 lacs to the government in lieu of the same.
I think most of the objections outlined above have strong logic, so I respected her decision and decided to show her the green signal to join the hospitality course. Today, she goes for waitings about once a week and has begun to earn money that she can use for out-of-pocket expenses or fun, or even save for a rainy day.