It's been really hard for the Sims 4 to keep my attention for long periods of time because it's not an open world. That is the sole issue with the game for me. I just hate the loading screens and ...
I think that the golden standard is somewhere between TS3 open world and TS4 closed neighbourhood. I would like to see bigger and more open premade neighbourhoods but with a possibility to create my own world and the possibility to edit the public area between the lots because sometimes EA does mistakes and due to that we have a gap between lots and streets for example.