A mod that would kind of... give teens who are hired at private business scholarships. Like working experience that grants them certain amount of simoleons when they want to apply for college scholarships. They have working experience at private business = simoleons.

I do that "on the side". There's no scholarship in game, but I just keep track of it in my SimTracker2.0.
Though it's a feature I still need to build.

Cabinets with inventory
It might have already been asked, but it's the one thing still missing from the game that would make it complete.

Similar to 3 casket/kabinet/chest thing.

A mod that lets player-controlled Sim enter foods with custom plates in cooking contests. They just don't appear. Weirdly noncontrollable Sims can still enter.

A hack that makes pizza not turn to origami when put in a zim's inventory!

On lots without a restaurant, have Sms disposing of plates throw them into garbage rather than go into random washroom to rinse them.

It would be nice if there was a universal add-on ladder for player-built bunkbeds - with shifting, we can make 'bunks' these days out of any bed, and there are add-on posts for some, such as Hemnes - but how do our simmies get up there, and why don't they fall out during the night?
I have a couple of standalone ladders, but they don't fit the other beds. Just as weird for the ladder to be standing there by itself, as for there to be none!

Hcove's Sinuous Sleeper does have a meshed-in ladder, and it looks like that one would fit general beds, if it was separated from the rest of the mesh. I don't know how difficult that would be.

An object/NPC that you can sell inventory items to instead of just deleting from inventory.

TeaAddict has a mod for selling from inventory, do I know where it is? Not exactly, but she does post on tumblr and/or her discord.

Here it is!
https://www.tumblr.com/midgethetree...ng?source=share

Yah, I use that. Just that sometimes I want to just dump everything into the void instead of other Sims inventory

This is more a 'would this be interesting or end up out of control'. XD Autonomous try for puppy/kitten, without needing human intervention.

I'd imagine that it would need to come with the option to neuter/spay your pets if you didn't want them breeding indiscriminately, but would it end up with a massive stray population boom? Don't want to end up with hundreds of unwanted kittens/puppies.

Honestly I have ALWAYS wanted that.

I second this, plus kind of... veterinary mod that allowes pets to get sick and for sims to treat them. And why not? Pets also have needs bar just like sims .

An instrument mod in which "perform" doesn't gain any skills, only 'practice.' Mostly to keep them at a low skill level because its funny.

MidgeTheTree couldn't find a way to enable autonomous pet TFB, but did make a Runaway Pet Pregnancy mod where runaway pets can come home pregnant to a random stray father. It's never happened yet in my game, though - I don't have pets run away often enough!

Funny Sims logic that my dog breeding family has to work so hard to build relationships between their pet and the prospective pedigreed mate, when in real life so much work has to be done to try to neuter animals and find homes for puppies and kittens.