In some cases, as adults they had a hard time committing themselves emotionally to other people. Today we have come to understand these psychological mechanisms better. A parent will normally stay with their child in hospital to make the difficult experience as normal as possible. Each child reacts differently to being in hospital. Their reaction depends to a large extent on how painful the stay is.
Some children feel safe and secure as long as their parents are there.
But some react very badly to a stay in a hospital. It is also important to stay with your child. Tell them that you understand and that you are not going to leave. Hold your child in your arms or hold his or her hand. Touch is soothing.