Question for the ladies in my life

Hi ladies,

Ok, this is going to be awkward to ask, but I’ll do it anyway.

At what age are you too old for me to call you ‘girls’? At what age would you prefer I call you ‘women’?

I ask this because I was talking to one of my bosses today about girls at the hospital, and apparently if they’re under 16 it’s okay to call them girls, but over that age they should be called women.

Apparently it’s insulting to call females older than 16 girls. Or at least that’s the thinking of this boss of mine. Who happens to be a woman, which I guess is somewhat germane to this question.

Can any of you help me out? I appreciate your input and thoughts on this matter. I have always trusted your judgments, so I value your thoughts.