Why university students fail?

There are several reasons for why university students fail.Firstly,owing to be lazy,some students can not succeed in studying.They mostly don't finish all the assignments in time.Probably they rather spend time on hanging out,playing computer games or even doing nothing.Untill the last few days before the test they would learn or revise their lessons and studying materials in a hasty manner.As a results,the low grades are seemingly obvious for them.The second reason may steam from personal problems.For instance,conflicts in family could also affect their studing,or they may face some issue with their boyfriend or girlfriend.All these matters might discourage them to focus on learning.