How tall are you?

I am often asked this question by Koreans with a few moments of meeting them.

I am 173 cm.  My amazing husband is 190 cm.

Koreans are really impressed by this. I have not figured out why Koreans are so shocked.  We have met Koreans that are taller than myself or my amazing husband.  In the last 20 years or so, Koreans have started drinking milk.  Therefore the younger generations are considerably taller than the older generations.  I am taller than most of the woman I work with.  Korean women love to wear heels!  Many times with their shoes on, they are the same height or taller than me!