It makes sense that people would not be in a festive mood only one year after the deadly Itaewon crowd crushing tragedy:

This photo, taken Oct. 28, 2023, shows safety fences set up in an alley of Seoul’s Itaewon to prevent a possible increase in people ahead of Halloween. (Yonhap)
South Koreans avoided boisterous Halloween celebrations Saturday, the eve of the country marking one year after the deadly crowd crush in Seoul’s Itaewon district that claimed 159 lives, with people mourning the death of the victims.
The crowd crush, the deadliest ever in South Korea, took place in the nightlife district of Itaewon on Oct. 29, 2022, a Saturday night when about 100,000 people flocked to the area for Halloween celebrations.
Late Saturday, Seoul’s crowded entertainment areas, including Itaewon and Hongdae, were bustling with citizens and foreign tourists, just like any ordinary weekend, but there seemed to be no uproarious Halloween celebrations.
“I used to enjoy Halloween parties, but I’ve decided to spend this year’s Halloween quietly due to last year’s accident. I think it would be difficult to enjoy Halloween in Itaewon,” said Kim Hyung-seok, 28, who visited Itaewon with his girlfriend.
Yonhap
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