Are cartoons like spiderman,superman and batman good for children of 3-4 years??

Well first off, there is a huge difference between the movies and the cartoons. Those movies are far too advanced for children of that age. The problem with the cartoons is the varied series involving those characters. Would I let kids of that age watch the Spiderman of the 70s, or the Batman of the 60s, sure, they were more comedic that violent. It is only the more recent cartoon versions that have edged close to "reality" in their level of violence. Still, used to hear this about Bugs Bunny cartoons, and those toons turned out the peaceniks of the hippie generation. I rather believe the effect is over-rated.

i agree with your observation. i too don't like my son to watch this kind of cartoon at his present age. 3 or 4 year old should watch educational cartoons like Dora, Handy Manny or other Nicolodeon cartoons. I would let my son watch spiderman, batman or superman cartoons when he is maybe 8 or 10 years old.