Ps4. Do we need to buy all the dlc again?

As the token console gamer here (lol) I honestly think it's a pretty good port! I love having something that can play the game and the controls aren't perfect for console but I played for a couple years with them and it was great.

I recently got a keyboard and mouse to play another game with and Sims 4 PS4 also uses keyboard and mouse.

You definitely need to buy again for console as it doesn't use origin.