The older generation still skews largely conservative, and they (particularly the dreaded mother-in-law) expect certain behavior out of young, married women. When a couple get married, there is a prevailing attitude that the woman becomes a part of the man's family and is expected to attend all their family gatherings, do a shit ton of cooking while the men get drunk and play games, and essentially forsake their own families. The number of grown men I've met that don't know how to do a fucking load of laundry is disturbingly high because they're molly-coddled (largely by their mothers) their entire lives. Particularly first-sons who are the only children who really matter to a lot of Korean parents and grandparents. Many women are - rightfully - rebelling against this. As are a lot of younger, more enlightened men.

Men on the other hand, are also rightfully upset that they are required to join the military for two years, usually right around the time they would be attending university. Which is giving women an edge in some aspects since they graduate sooner and don't have their education interrupted by a military stint. Pretty sure the younger generation is in favor of getting rid of mandatory military service, but again, the older generation won't have it. Especially with the North up there rattling their limp sabers constantly.

Basically, old conservatives ruin everything.