the ability to create my own neighboorhood and expand them (with downtown, universities, commercial neighboorhood from otb) i only play with rotation otherwise i get too attached to one particular sim and keep playing only with them, ditching the rest of the family in the process, until i am bored of the whole game
my precedent bacc playthrough as gone for like… 5 or 6 year (playing on and off) and i would never have achieved that with how rotational gameplay work in the sims 4 (too little space to expand, even if you delete all preexisting sims, i had maybe 200 sims in 70 or so different household)
plus time based opportunities, carrer or aspirations just don't work in the rotationnal gameplay on the sims 4
oh and also, give them like… personnalities, i feel like i'm playing more or less the same sims over and over again in the 4