1. I don't have any trouble with IOS. My experience is very limited: I've got an old iPad Pro that runs the current IOS, and that I've had for a couple of years. It Just Works* -- it lets me watch dumb shit on YouTube, check the weather, and remotely operate a digital mixer, and that's all I really want from it. Previously, with a gap of about a decade, I had a minty-fresh OG iPod Touch that also Just Worked* (until it died a couple of years later during battery replacement surgery). Despite my limited experience, in both cases I've found the interface to be adequately intuitive and don't recall ever really seeking any guidance.

2. Some people like the walled garden. I'm not really amongst them, but I do tolerate the walls. (For those who absolutely abhor walls, there's rootable Android devices out there that can satisfy an itch to tinker with something in compact portable electronics. That's a lot of fun, too, but it's heading in the opposite opposite direction of Just Works.)

*: They "just work" within their limitations, which can be severe. It frustrates me that I can't install real Firefox on the iPad so I can use uBlock Origin, and it frustrated me that the iPod Touch didn't even come with the ability to install apps or even copy-and-paste text out of the box**. But in both cases, the devices behaved very well with the functions they were permitted to utilize.

**: I jailbroke the iPod Touch and went pretty far off the reservation with it (adding a clipboard, installable apps, multitasking, and a useful userland) because that was fun for me at that time, but by no means did I have to do any of that -- it was a very fine touchscreen music player with 802.11 and a web browser all by itself without any of that kind of help, and that's pretty much what it was promised to be able to do. And that was a long time ago; during the gap, I'd forgotten more about IOS than I ever knew.