A Korean woman touched a foreigner’s hair on the subway… thoughts?

I came across this post from a foreigner living in Korea, and it honestly made me pause.

They were sitting on the subway, and a Korean woman suddenly touched their curly hair and said, “So cool!”

The person felt super uncomfortable, but when they told their Korean friend, the response was:
“You’re overreacting. Koreans are just curious.”

👉 Full post here: https://kingle.kr/issue/a-stranger-touched-my-hair-on-the-subway/

What do you think?
🔹 Is it a harmless cultural curiosity?
🔹 Or is this clearly crossing a personal boundary?

If this happened to you, how would you react?