InTS3/4, you have to sacrifice personality trait slots for things like "artistic" or "loves the outdoors", when in TS2, these interests have their own system separate from the personality values. I played the Sims 1 on PlayStation very recently. Even in the console version of the game they seemed a bit smarter. TheSims 4: Discover University introduces thirteen degrees that are available at any university. Sims can take four classes per semester toward any normal degree, and each degree is associated with a few skills. Every full-time career benefits from at least one associated degree. There are also Distinguish degrees that will offer a higher career level than a normal degree, however, it Itemsno longer help with this in The Sims 4, but certain Traits or Lot Traits can help. For example, the Reward Trait called Fertile nearly guarantees twins regardless of whether the Sim who has Asim's traits give them special advantages during gameplay. Playable household sims begin with one trait, and will unlock additional slots as they gain life experience. The maximum of number of traits is 5, plus the potential Good Upbringing trait. Once assigned to a sim, traits—and their levels—are permanent. The player is required to assign the first trait after first customizing a sim .

sims 4 how many traits can a sim have