1.perhaps, his/her parents have no interest in discussing what he or she could do after form 6.
2. perhaps, his or her school has no culture advising their students how to pursue a degree course. perhaps, pursuing a degree course is "rare" in his / her school. hence, the word "university" is out of their mind.
3.perhaps, he or she does not know what she /he is doing in form 5/6.