Would you please stop calling it OS/X? That's just screwy, and demonstrates that you really don't know what you are talking about as do your other threads complaining about the functionality of the system. Mac OS X or, simply, OS X are acceptable. Quit the OS/X stuff.
And yes, your problem is that you expect things to be the same across every OS out there. That's impractical. It also shows you don't know the history of Microsoft and Apple. Apple came up with a lot of this stuff back in the 80s and Microsoft ripped a lot of it off, changing it just enough to not be sued into oblivion. MS became the popular choice, though, so their methods and shortcuts are what others started using over the years. Apple hasn't changed a lot of the OS basics since the beginning of the Macintosh brand. Sure, things have evolved, but a side-by-side of the original Mac and one just off the line will show that Apple has been pretty consistent for over 30 years in the UI department.
But, I get away from my original point: please don't call it OS/X.