In separated and single parent households 55% of children see their fathers less than monthly, 33% have no contact at all.
12.5% never knew their father (Smith M (2004) Relationships of children in stepfamilies with their non-resident fathers, Family Matters Vol 67 pp28-35)
Seventy-five per cent of non-resident fathers would like to see more contact occurring (Smyth B & Ferro A (2002) 'When the difference is night and day: parent-child contact after separation', Family Matters Vol 63 pp 54-59).
In one study of cohabiting parents, 47% of the fathers had either been their children's primary carers or had taken substantial responsibility for their care before separation - yet none had been awarded through the Courts, or had felt able to obtain through non-court agreements, primary care of their children after separation. (Lewis C, Papcosta A & Warin J (2002) Cohabitation, separation & fatherhood. York: Joseph Rowntree Foundation)