You want all of that too, just like any other sane person.
And all of that is the norm, the default; how things should be and how they've always been until Apple decided that iPhone customers are so unworthy and ignorant that they will buy anything, regardless of how lacklustre the product is. It's not the situation of «they demand us to make a better product so we will raise the prices»; it's more of a «the product was so inferior that it should never costed this much in the first place».
The right to repair means you can keep using this expensive device for longer, among other things. It will allow you to have your device serviced with original parts for market prices instead of insanely inflated Apple Prices. It will also allow people to repair parts like motherboards and screens instead of just throwing them away, causing piles of e-waste. Ultimately, it will make Apple customers happier and more satisfied than ever before.
Sideloading means you can actually own your expensive device and do whatever you please with it. You won't have to create additional App Store accounts for apps that are unavailable in your region. You'll be able to use any apps, not just those approved by Tim Apple and some of the most democratic democrats in the world. You won't have to install Telegram on Mac just to be able to see all the channels with pictures of naked anime girls. You'll be able to support developers of your favourite apps directly and use the real actual internet without the Apple Tax.
USB-C — good for the planet, good for convenience, and good for Apple because customers are, again, happier.
The best time to finally provide customers with these features / ideas was 5 years ago. The second best time is now.