Nothing, who cares what others think
There are so many different types of Cartoons I don't think you can say. Think of the difference between Family Guy and Spongebob Squarepants.
This we never will know. Watching only cartoons might even be bad.
Yes, it is true that watching only cartoons has nothing to do with working as a computer programmer
No
In my perspective, I see that most people see that watching only cartoons is immature and childish. Even some older people watch only cartoons, so everyone has the right to only cartoons.
The difference is the maturity and experience that an adult has. Watching only cartoons as an adult can result in a lack of maturity and experience whereas an adult watching cartoons as part of his or her entertainment shows responsibility and more maturity
Some of "the adults" realized this a long time ago.Doing nothing but watching cartoons is bad.Choosing to spend your (reasonable amount of) TV-watching time watching exclusively cartoons? Perfectly fine.
NOthinG
Both, because watching just cartoons will cause you to lose interest in them later on
because it's not mature
Yes.
OPINION
When you find out let me know. My husband is 35 and almost only watches cartoons (currently watching Robot Chicken) or Star Wars.