Is it ‘unfair’ to children for parents to involve them in the pro-life cause?

Abortion is not first and foremost a debate or a political issue.  Abortion is the deliberate killing of an innocent human person at his or her most vulnerable state, carried out with the sanction of the government, and so is without compare the most pressing social justice issue of our era.  Armed with this belief, why wouldn’t pro-lifers engage their children in the cause of life?