Women schedule the cat grooming appointment, even if the cat is owned by a man and a woman.
Almost all of my emails and calls are from women.
A few calls and emails are from men living in committed relationships with other men.
Once in while I will receive a call or email from a man who is not living with another man. Usually the man is caring for a cat who was owned by a wife or long-time partner who has passed away.
While women are the ones to schedule the appointment, men are usually the ones who wind up helping to restrain the cat if the cat is trying to bite or scratch. They don’t volunteer. Their female mate volunteers them.