Many students can not complete their thesis or dissertation. so, why it should be happens? The students capably is low or the lecturer or professor expectation is high. Far Beyond the students efforts.
There are many reasons that this happens. The learner might have a difficult chair or methodology. The time needed may not be allowable by the student. Money is a huge contributor because this level of degree is very expensive. Some students just feel that it is not worth it.
(1) Students cannot mastering in methodological or technical skills required to finish their thesis. Others simply need longer time to learn. This makes them bored and divert their attention. This is the importance of supervisors to dedicate their time to supervising, easy to arrange meeting, give fast feedback, etc. (2) Students' constraints relating to non-academic issue, such as job offering, financial constraint, family problems, that make them cannot focus on their study. (3) Lack of support from university/faculty/department. Since not all students cannot find support from family, university must take action. Moreover, high drop-out rate is not good for university's reputation.
reasons are many, starting from student's do not have what it require to do a Master's or PhD (intellectual features, endurance), students' environment is not suitable (challenges to secure funds for the studies, lack of support from parents; too much other commitments for part-time scholars) and supervision is substandard and does not guide the scholars in ways it would be required. Often drop-out is the result of a couple of reasons. It is important to identify such challenges as early as possible and discuss with the scholar possible interventions.