They don't like exposing themselves that way. Sometimes they do better with grief counseling, one on one with a therapist of a clergy person. Sometimes it helps them to listen to a speaker, in an educational format. The first years are lonely for the parents and children. They're experiencing such grief that it can take an enormous amount of energy to be available to anyone else.
Parents can be emotionally unavailable to their other children for several years.
For this reason, these children need additional outlets for their emotions and ongoing sources of additional emotional support. For many families the loss of the child is compounded by the emotional absence of a spouse or, for the children, a parent. People and groups are available in the community to help. Many hospitals, like Johns Hopkins, have hospice programs and other bereavement resources available. Support Groups for family and siblings are strongly recommended.