Should marriages allow more partners?

In real life I only believe in a pair of soulmates. But in game anything goes. That's the whole fun. Having all types of sims good and bad living different realities and aspects of life. So why not have more options? Infact some of the most fun I've had in this game is doing things I would never do in real life. Like clubbing. Never been to one and never will but I have this sim who is club obsessed and we have a blast in there. Why would I need to live out my real life in a video game? Games are supposed to be adventurous and different from your everyday reality. Sometimes they challenge your beliefs and I like that.

Edit to say people complain about ts4 being boring but that's because they try to live out boring everyday real life routines that you can get up and do yourself and complain about anything that contradicts that.