The rise in its preferability is mainly because of its ease and convenience. The flexibility of online education (i.e. anytime anywhere, any pace) allows students to plan to work and continue their higher education simultaneously with ease.
Online education come in two major forms - one that is for credit courses where students enroll themselves mainly for credits and the second type is for professional training and certification preparations where the purpose is to prepare students for certification exams. In terms of popularity, at this moment the second type of online courses are a little ahead because students mainly prefer to work as well as study alongside to develop their skills.
Even though the rise in the trend of online education is catching up across the world, there are just few countries which have completely stormed in this area. These top countries who are also the leaders of online education have a complete pack in the world of online education. Hence they have soon become a role model for the other countries who too wish to be in the same league.