Why is it that people treat you badly if they know you are an adult who watches cartoons daily?

Current-day cartoons may provide some of the most socially relevant programming on tv; no one can argue that early (pre sellout) South Park or The Boondocks do not have socially relevant content. Perhaps the people you have revealed this to prefer the network news? Instead of asking why, it might be better to consider these as signs, and run from these people.