Shared calendars - keeping an event private

Hi, I share my calendars with my family (we are 4) and we use various calendars amongst us. I have a work one which is currently shared with only my wife. I would like to share with my kids so they know when I am available to give them a lift etc but I do not want them to be able to see what I am doing on that appointment, only that I am busy/not available. Is this possible in Apple Calendar…I know it is in other calendars.

Thank you in advance.