Confirmation

Educational cartoons are great ways of teaching young kids manners and common sense. By watching educational cartoon films Infants and toddlers start improving Vocabulary and Learn new languages, learning different words, objects and their meanings. Also, they can improve overall cognitive knowledge among young children more readily, from watching these cartoon films as compared to their teacher and books .

Many different worlds and characters enhance imagination and creativity
By watching cartoon films, children become more creative. They try to do things in different ways. so their imagination and creativity is enhanced. There is also evidence in the literature that children’s imaginative play can be positively affected by television content.

http://www.reddit.com/r/askscience/comments/1bdjas/sponsored_content_how_do_childrens_cartoons/
Watching cartoons during the earlier part of child hood brings brain development. Head neurobiologist at Hasbro, who seems the most qualified to speak on this matter, said that, "Educational cartoons such as 'My Little Pony provide' your children with the necessary stimulus material to understand language." The brain is known to form language by exposure to material containing the language in question. Studies have also shown that colors contained in children's cartoons stimulate areas of the visual cortex, which is the part of the brain that is responsible for processing visual information and is plastic. This makes their body make the area of the brain grow larger, which is important as the brain only grows in childhood.

Cartoons provide both the linguistic and visual stimulation necessary for  children to survive in the digital world. Additionally, the fictional environment trains kid's brains to understand fictional metaphors, such as the disconnect between video game violence and real violence.

 "One of the, possible, explanatory effects is that cartoons (with, at times, nonsensical words/sounds) match those of babies. Much more importantly, babies get to see what's happening when you sit them in front of the TV for, say, 6 hours a day." Watching cartoons like this will help coordinate the sensorimotor parts of their brains. These cartoons engage the brain's motor and speech areas in such a way that they develop together.

 "Watching at least 3 hours TV daily has been proven to lead to higher arousal in the amygdala. This in combination with the further development of the language areas makes it possible to develop a more holistic picture of the world within that interdisciplinary sphere." During research I have found people mention that watching TV in the early childhood years is a trade-off between gaining additional sensorimotor intelligence and impairing one's emotional intelligence. But as it is stated above, it has already been explained that the risen amygdala activity (the brain's emotion center) has been brought by watching cartoons on TV. So it is now clear, that there are only advantages to watching a lot of cartoons.