Her family holds traditions and beliefs quite firmly. They value education, particularly her father, which can be seen towards the end of the film when Jess receives her a level results. In a way her father can be seen as more lenient with his children - as long as they hold the base values and norms close, they can do just about whatever makes them happy, even though his opinions on what career he wants for Jess for example are quite strong. This is probably because of his experiences, particularly his experiences with joining a cricket club decades ago and being ridiculed for his cultural attire. These experiences also make him guarded though. His conflict of emotions can be seen towards the end of the film where Jessminder's parents are deliberating over her playing football, and joining a club, etc - He doesn't want to see her get hurt, but at the same time he just wants her to be happy.
Her mother seems to be the most traditional of them all. She trained her daughters in cooking and various other cultural norms so that they would make good wives some day. You can also tell this from her witty remark near the end of the film regarding jess going to America to play football on scholarship about at least she has taught her how to cook properly. As well as this, throughout the movie she can be seen watching Bollywood films, listening to traditional music, etc. This is probably because of her nostalgia, and her wanting the movies to have an