The problem in Korea at least isn't with meeting people (well, for 80% of the population), it is young couples feeling they can't meet the finances required to satisfy social norms, and thus deciding to delay the marriage-kids sequence indefinitely.

Several of my coworkers had been dating for 5+ years, but they were only making $50k annually (early career engineers). The socially expected family-sized condo costs $500k to $1M, and the young couple is expected to buy and furnish it before their wedding.

Makes sense that most people would time out on child bearing age before they got there. especially now with 8% interest rates