@Chicklet453681 That is interesting to think about, an incredibly scaled down version for base game only. Hm. I do like the idea, but I do see some problems arising-- specifically how much is enough.
Say the Sims 4 devs argue now that they: 1) do include sunny weather, 2) included small pet frogs, and 3) included primary schooling and that should meet those basic requirements to be expanded upon. 4 was lacking in many areas at launch, but it did similar in these three aspects in every game as we have both acknowledged.
I will not defend lacking the most basic of weather such as an occasional cloudy day, but I will say for university that some people really do not go. We also have no representation of trade schools, which actually could and probably should be the base game alternative.
As for pets, I never see us getting them base game solely because of CAP. CAP has to encompass so much, even if it is to be expanded later. Plus all the extra modeling. So I genuinely believe pets will ever really be base game.