Well .. you have to play some psychology here with your parents. First ask which field is promising according to them. And then weigh the merit of the field in terms of market value and analyze if you are qualified and have the passion for it. Then analyze how much they know about the field they are recommending by asking about career prospects, job opportunities, expected monthly income etc. Carefully record their recommendations, so you can then counter it for psychology. You can then place arguments about Psychology, using the script of their recommendation. That will put them in a corner. Also gauge whether they just undervalued psychology, just because you asked for it. Some parents have this attitude that children do not know how to decide for themselves, and it must be them to choose.
And as advice to you, you must first gauge yourself if you are cut up for psychology. From your traits, you can know that you are good in studying behaviors of people right from your childhood and you are someone known to be patient while handling situations. If you are, then you can go ahead and pursue. Psychology is an art, and not something that can be learnt. And as to job prospects, Counsellors are in great demand as hospitals, schools, colleges, big organization, all need counsellors. So its wrong to say that Psychologists don't have job opportunities.
