Anniversary or OTHER dates in Contacts not showing in Calendar
I know Birthdays in Contacts appear incrementally in Calendar.
But the OTHER dates in Contacts don't appear in the calendar even though in CALENDAR Prefs Birthdays are switched but there is no option to display the OTHER dates from Contacts.
Looks like OTHER dates was an after thought which never got worked into the Calendar.
I can see people have asked this question for many years now without any action from Apple.