The reason is 
Only state-run banks such as the Korea Development Bank and the Industrial Bank of Korea participate, while commercial banks rarely participate
The participation rate of the five major banks KB Kookmin, Shinhan, Hana, Woori, and NH Nonghyup is 1
This is why ordinary people usually use commercial banks and do not feel the impact of the strike
But there’s a reason why only state-run banks participated 
I didn’t get a lot of sympathy for work hours due to the details of the strike, so my participation in the strike was low in the first place
A large number of state-run banks participated in the massive incident
conclusion
Commercial banks do not participate much, so the general public is not affected by the strike