Define 'suitable for 10 yearold'?
Personally I feel a child should be able to learn freely, while parents are there to explain stuff that does not make sense and help it to think for itself. Somebody else may feel otherwise.
IMO anything goes except religious, racist and otherwise offensive stuff.
I havent got children of my own, but have been one some time ago...
I remember being interested in sexuality at the age of nine and my parents gave me all the information I asked for (though from dated books). I did not use this info 'till early adulthood. Today all the media are sexualized, (though violence in cartoons seems less nowadays) so there is even more reason to inform your child about what is fact and what is just erotic fantasy early on.
on reading:
Sarcasm is an aquired sense, so often lost on the young.
Make sure this form of humour is understood.
Imagine the horror of your child taking the spoofs in Southpark (on US social/religious injustices) seriously for example!
Understanding concepts of indirect humour may be an indication mental development, dunno, I'm no psychologist.
A point for games being didactic:
As a non-native english speaker, playing elite led to me look up some word in the dictionaries at home.
"right on!" was impossible to find, but the gist was clear.
In short: have faith in your youngone's abilities and make sure to let no question be weird.
I hope your boy grows into a smart little scientist or creative scifi craftsman, wherever his talents push him.
YT, Arexack
ps. Children take answers from parents (and teachers etc!) as truth, so be sure to answer truthfully and not invent explanations on the fly. This trust can be shattered as easily as belief in santaclaus. Then again, realizing your parents are human and don't know everything may be an essential step of growing up. Nowadays with wikipedia, et al. any info can be easilly found anyway.
I certainly plan to inure my children to 'facts' before they go to preschool, so that no overly zealous teacher will succeed in brainwashing him/her. :shakes fist:
pps Sorry if I exceeded the scope of this thread. I'm in conflict with my 'better half' about teaching religion to our potential spawn at the moment.