What are the main differences between the course types(E-learning, classroom, blended)? Besides the possibility to assign a classroom to the classroom type, I haven't yet noticed differences between the 3....can anyone shed a light? 10x

P.S Also I've noticed that if a course has "free subscription" or  "User enrollment has to be approved by an Admin", in both cases, users that subscribe need aproval from admin. Why is that? shouldn't free subscription mean that the user will be automatically subscribed? whats the difference in this case?

the lcassorrom and blended enable the "classroom association" module, the e-learning don't. Regarding the "free subscription" maybe is a bug. Please specify what version you are using Claudio

But what are the differences between blended and classroom? is there any difference from setting point of view? Is there something you can do with blended type that you can't do with classroom type? or viceversa? I'm trying to understand the difference between those 2 types .

They have abstract context and there is no functional difference .
Regards