Sorry, Britwife, but that is a pretty senseless argument. That's not the way healthcare works in this country. It is based on clinical need and not on causality. Besides, why would anyone bring a child into the world for the sole purpose of reducing the risk of getting breast cancer?
Childminding is not a responsibility of the health service. There are resources with Social Services to help out with emergency childcare, but things have to be pretty dire and be unforeseen before this help can kick in.
If I make a trip to the doctor or the dentist for routine care and feel that I want it to be a child-free experience, I don't expect the state to pick up a childcare tab for me.
The care of young children who are not at risk is not the responsibility of the state - it's up to the parents to sort out something that meets their needs and pocketbook. Traditionally, people use friends, relatives (including the child's father) and neighbors to occasionally mind their children, and failing that a paid childminder or creche.