They know as a foreigner in Korea you attract a lot of attention and they may assume that you must have many girls chasing you.They will certainly start any relationship with suspicion. Early on, you may find that your new girlfriend will want to check your phone for evidence of you seeing another woman.So you start dating a local Korean girl, but quickly discover that dating a Korean girl is quite different than dating back home.
A Korean woman depends more on her family for support than a western woman.
Koreans tend to live with their family until they are married off in their late 20s or early 30s.
A lot of Korean women hate Korean traditions and culture which tend to favor Korean men. When you start to date a Korean woman, they may already be thinking of marrying you and returning to your home country one day.
I suggest you be clear early in the relationship about your future plan about returning home and if that plan includes her.
As result, they still have to follow their parents’ rules.