As the primary caregiver for my daughter over the past 10 years, social bias been a constant challenge. For school and extra curricular activities we just list

As the primary caregiver for my daughter over the past 10 years, social bias been a constant challenge. For school and extra curricular activities we just list my contact information, and even then, somehow, my wife is the first (and only parent) to receive invitations, notices or other communication. The best hack is to have a generic-sounding email that doesn't include the father's name; or list my number under her name (you get hangups though), or only populate my number under the "home" telephone. This way, my contact has chance of being used by someone searching exclusively for the mother's contact information. Things got better when my daughter became old enough to say: "please call my dad, his number is .... ".