I don't know how you're confused. This has been debated to death now. People that agree and people that are against had presented their reasons over and over. There are lots of active threads about this same subject in this forum alone right now. You have hours of reading there. There are people that have explained their reasons extensively...
That being said, at the end EA will do what they will do, whatever they feel right. Imo, and against what i would want for the sims franchise, i think they will do it multiplayer. And i think that because in my line of work i deal with 12-15 yo girls (and boys). Almost all girls play the sims (specifically sims 4) and ALL of them told me they would love to play multiplayer. I didn't ask them a thing. They just comented how cool it would be to play with their friends. I have no doubt that sims 4 is already a watered version of what the sims were exactly to cater to this young girls that just want to play an easy game.
