In classical learning one cannot have the practical knowledge about the subject but by observational learning one gain a better experience and knoweldge ....so observational learning has its own merits.

Observational learning ¡s learning that occurs through observing the behavior of others. It ¡s a form of social learning which takes various forms, based on various processes. In humans, this form of learning seems to not need reinforcement to occur, but instead, requires a social model such as a parent, sibling, friend , or teacher with surroundings. Particularly in childhood, a model is someone of authority or higher status in an environment. In animals, observational learning ¡s often based on classical conditioning, in which an instinctive behavior is elicited by observing the behavior of another (e.g. mobbing in birds), but other processes may be involved as well.  Human observational learning Many behaviors that a learner observes, remembers, and imitates are actions that models display and display modeling, even though the model may not intentionally try to instill a particular behavior.