Why Does This Game Still Encourage Marriage?

The holographic online game "Legacy" is a "marriage and love simulator" that players love and hate. Other people's games urge you to clear your books, but this game urges you to get married. Other people's games have explosive costumes, but this game... Has explosive costumes. Here, the NPC matchmaker is more difficult to deal with than the wild BOSS, and the family elders worry about your "personal problems" every day. A successful marriage is better than three months of failure. A talented offspring is your strongest trump card to sweep the server. From being forced to get married by the whole server, to personally creating a top-level bloodline family that makes everyone jealous. As you play this game, how come you are living the way your ancestors expected? ——Welcome to "Heritage", a magical world where you are OUT if you don't get married and have children. —— Ps: The core setting of the game draws on the setting of "Twilight of the Gods", a stand-alone game that I like very much.