Modern operating systems hide all the complexity from you, doing it all for you. Amiga OS does very little for you forcing you to learn and understand concepts that most take for granted. That's the fun, that's the challenge. If you just want to buy a computer and have it just work, stick with Macs. If you want to dig deep and understand the concepts and be willing to fail a few times in order to succeed the welcome to AmigaOS.
I am always surprised when these bright young kids come into my office and they don't have a clue why things work the way they do.
But learning all this is half the fun ... I was a total Amiga n00b 2 months ago but now im almost a competent user thanks to lots of experimentation and research.