Family practices related to hygiene, affection behavior, and privacy were studied using a sample of mental health and child welfare professionals. The professionals were asked to use their own experience to state up to what age it was acceptable for parents and children of the same gender and mixed gender to engage in certain family practices. For virtually all family practices, respondents reported lower appropriate ages for mixed gender pairs. Family practices were acceptable for mothers with their daughters up to older ages than fathers with their sons. Results indicate high variability in the responses regarding appropriate ages, as well as whether the behavior was ever acceptable. The implications of these substantial differences among professionals who often assess these practices as "soft signs" related to abuse are discussed. (Contains 9 tables.)