The time around when a new baby is due is not the best time to teach a new skill like toilet training or a new daycare program - if possible, these should be put off until after the baby is born. Our hospital allows older children to visit newborns. Ask the hospital staff about the specific policy just prior to delivery. The time just after the baby is born is a good time for a father or close friends to spend some extra time with the older children. Some experts suggest allowing someone other than the mother carry the new baby into the house.
Older children can handle the new baby to some extent, depending on their age.
Some younger children may see the new baby as a new toy. It should be emphasized that the new baby needs to be treated gently, not like a toy doll. Siblings can get things like diapers and toys for the baby. Visitors to the home should be reminded to pay some extra attention to the older child, as well. Each parent should make a conscious effort to spend some time alone with the older child.