From my perspective, and I come from a dolls house and miniature house building background, what I would want in a game is freedom to build and freedom to let my sims do what I want them to do - nothing more, nothing less. I would like to create buildings that match my imagination, with the tools that allow me to do so. I would also like my sims to be able to use build and buy objects in any way I wish my sims to use them, allowing imagination full rein.
This is not to say that I don't want any gameplay - it's fine to be there for people who want to use it - but at the same time, at least allow the player freedom to do whatever they want in the game. For example, put in a ticket machine so a player can have their sim making money from a building they have created for that use. Have retail if people want it, but offer just that small opportunity to put a ticket machine at a gate - like a park or a swimming pool, or a bowling alley. Put a ticket machine in a cafe and have the sims eating whatever food your sims produce, even it its just a ticket machine required to enter the cafe. This gives freedom instead of having to play the way someone else imagines it. I don't feel that's a lot to ask. It's such a small thing that would make such a big difference.
Let players offer rooms to rent so they can play a hotel, or a guest house. Such a small amount of coding but so much freedom.
I think Sims 4 has delved much too far into specific gameplay and specific lots for that gameplay that it's taken away the players' ability to use their imaginations and build and play the game with freedom.
So for me, instead of devs trying to work out how a university student might not eat and taking away cookers in the university - let the player decide if the student will have a cooker or not! If a player wants a cooker, let them have it. If the player doesn't want a cooker, let them take it away! It's not a big deal. Museums are the absolute worst culprit for being boring - why can't npc's use objects? Why is it that all they can do is view this, or view that? It's so boring! Let the player decide what will be in the museum! In cafe's I sometimes have my sim working as a waitress or a cook in a cafe and at least there is programming for npc's to eat the food my sim makes. But she can't clean that cafe counter even when it's green, which is frequent! So frustrating for the player. Most npc's clean their plates themselves - why?
Players are very good at making up their own stories and their own scenarios - all they need are the tools and the ability for npc's to use objects. With a little thought, this could have so easily been added to the game.
I live in hope that this freedom will be offered at some point in the future.