I am nodding with TG

I agree with TG too, but I once worked with an Irish woman in her 20s who considered hair a bit past shoulder length to be short. All her Irish friends had very long hair.

For me, anything above my shoulder feels short. I haven't done "short" short in almost 30 years and looking back at pictures I won't. I'm currently at about 2" below my shoulder and don't consider that long.

I agree with what TG said from an objective point of view. For me personally, anything that is at my shoulders is "short". I know it is not really short but it feels that way. I have a long neck and I feel like my head is sticking out like a lollipop if my hair is too short.
My preferred length is at my clavicles. I think that works best for my hair type and for body type. Pic. #1
When I was a teenager my hair was to my waist. I have had my hair to my mid-back in recent years but it was thicker. I have lost hair due to stress, etc.