1. You can pursue a job along with studies

2. You can save money

3. You save time

I think we all have heard about the e learning which is one of the largest used websites in world
most of the students who are not able to reach their school as they have some disease or something can easily access the education from their home
if they have any doubt they can replay it 
the teaching of the same concepts by different teacher's are also provided so that if student is not satisfied with one he can switch on to the other