In my early 18-20 I used to get BJ,CIM from 20 something for free ,morning,noon,afternoon could be different but yes service is different with Korean provider.
This is good and bad.
Bad because we have high bar experience now.
Imagine 20 something guy never married serviced by those Korean woman, there could be psychological problem later in the future. I think we shall just accept the fact the service given (by the Kgirl) is no match by others.
I compared with Thai service too or other SE service, the Korean won in multiple front hahaha...