If Korea actually wants to grow the tourism industry through policy

‌They should at least be promoting something,
but if you go to large platforms like Reddit,
it's hard to find any advertisements for traveling to Korea.
They just don't do any viral marketing at all.
Also, there needs to be more light entertainment for men, like soft bars,
but the country itself is way too "Confucian girl" (conservative).
I don't know about Japan or Thailand, but at the very least, there should be more nightlife/entertainment options than in Vietnam.
Aside from the clubs in Itaewon, Seoul that cater to foreigners,
they are close to a zero when it comes to nightlife tourism.