Ex-etiquette: Respecting each other's turf

A father is experiencing conflict with his ex-partner regarding boundaries during his designated parenting time. The mother frequently attends their daughter's soccer practices, school events, and routine appointments, even when it is the father's turn to parent. When confronted about these intrusions, the mother justifies her presence by stating her right as a parent to be involved in all aspects of their daughter's life, leading to ongoing tension regarding the respect of each other's turf.