I'm so sorry to hear about your loss. You have my sympathy. It's very hard to lose a parent.
My daughter, now almost 6, has asked lots of questions about death in the past. We've tried to answer them as openly as possible and get across the idea that death is just another facet of life. If we were faced with a funeral we would probably bring her. In my husband's family, he didn't go to any funerals growing up and he felt that it made the death harder to come to terms with, because there seemed to be no reality to it; people just faded out. (Oh yeah, your grandma died a couple of weeks ago. You won't see her again. Thought you should know.)
That said, your DS may have different needs. You're in the best position to judge what his needs are.
