Often one or several people in the family system carry the difficult fate of older ancestors, this makes them ill. The sentence is often something like 'out of love for you I will die in your place or I follow you'.
This is the choice of each individual and needs to be fully honoured and respected. A person's relationship with life and death is unique to each person and each person has a right to choose.
We see it like the person who is most troubled in the family has the greatest love for everyone else in the System, that is why they choose to carry so much.
The family system asks illness or death of no one but sometimes individuals within systems choose to become ill because they think its going to help someone else. They are confused.
A Family Constellation is not designed to change peoples choices. It is designed to bring awareness to deeper systemic dynamics and offer the possibility for healing, what a person chooses in their soul is still their choice, influenced by the system but not chosen by it.