Hey Alexis dale, glad you're enjoying the game. Unfortunately, your post is very hard to read. It might make things easier for people to read it if you break things up and punctuated it a little more clearly. It would especially be helpful to see the features you enjoy put in a bulleted list rather than a big wall of text.
I can't get at everything you're writing because it's hard to understand, but it looks like yes, the game does include some awesome items and confirms what other people have said, that Sim interactions and AI overall has generally improved. I think it also is just a given that any new Sims game is going to have better character creation and house building tools.
A few of the items (just a few mind) you list though, yes, actually were in other base games -- just for a few examples, yes, prior base games did have toys that helped children raise social as well as skills; yes, Cooks did cut themselves while cooking if they had low skill with a funny animation; yes, teens could get part time jobs including working retail, as barista, etc.; yes, there was a base game jukebox (IIRC, as far back as the Sims 1); yes, in Sims 3 they would pre-style your house furnishings if you wanted (although no, you couldn't buy room by room, and that is a cool new Sims 4 feature).
Personally, however, I think it's unfortunate however that a lot of what's new and good comes with a tradeoff with things lost. You can interact more with a child, great, but you've lost the toddler (and all the toddler interactions and skill development with it--including, yes, effectively some motor skill development) life stage entirely, and that seems unnecessary. Some of the new items sound really cool, but it's come at a significant loss of major and important items like cars, pools, and dishwashers. My favorite thing in Sims 3 base game was the open world, because it was tremendous fun to explore the big huge world and find hidden things and objects to collect--I spent (and still spend) hours and hours just running my Sim around town looking around and finding stuff I never noticed before; the more limited Sims 4 world largely disallows that, with much fewer areas to explore (I have heard there are two secrets you can find though).
Still, your post is one of the first places I've seen a detailed list of new and interesting features, so again, I hope you have some time to write it out more legibly, as it were.