Well, I won't be getting any flu shots for myself, but if I had children, I probably would. I work with a group of moms and this discussion came up. Some were concerned because their children have existing conditions, however, it all came down to IF your child got the flu and the worse happened, would you be OK with the decision you made not to get the vaccine? Other discussion was from mom's who stated that if the whole family came down with the flu, she would be needed to take care of them, and how could she if she was sick too?
I personally have not seen or heard of any really adverse side effects of the vaccine. If I had children who have no other existing conditions, I'd get them the vaccine. If my child did have some other condition, I'd bring it up with my doctor.. but for me, the choice would still fall under that discussion of If my child got the flu, and the worse happened.... well, I'd get the vaccine.