Of 503 Families Need Fathers members polled, nearly eight out of 10 (78.6%) feel they are not adequately informed and involved by their child's teachers following separation from their partner, while nearly 95 per cent feel they are not adequately supported by the family courts and Cafcass.

The charity launched its Shared Parenting – Shared Benefits campaign to raise awareness of the benefits of both parents being involved with their child after family breakdown.

The project is funded by the Equality and Human Rights Commission (EHRC).

As part of the campaign, Families Need Fathers is calling on teachers, family law professionals and Cafcass officers to do more to include both parents wherever possible.

The charity is also calling on separated and divorced parents to demand their voices are heard.

To help increase support for shared parenting, the charity has produced new guidance for teachers, Cafcass case officers and the increasing number of parents representing themselves in court (Litigants in Person).

The Cafcass guidance will be distributed throughout the Cafcass network in coming months and available to download from www.fnf.org.uk.

Families Need Fathers spokesperson, Craig Pickering, said: “Research shows that shared parenting can have a powerful and positive impact on children’s lives, and schools and the family courts have a crucial role to play in this.

"Some professionals are doing great work to encourage the involvement of both parents but others are not doing enough and the support parents receive remains a postcode lottery. By encouraging practical improvements we hope to make life better for children whose parents have separated.”