Mi-ae kinda pissed me off NGL, she wasn't being snobbish, she was being gross! I don't even agree with the idea…
She may voice her concerns as a good friend, but the FL is a rational adult who knows what she wants and acts the same. So her concerns are as good as useless.
Not sure they are just reflecting on the society then... he is not even mature enough to get married... but then, the drama started with the mom trying to marry off her daughters... so it doesn't matter what you and I think