> In just about every other graphical file explorer I've ever used, including the DOS ones, Enter opens the selected item. In the Mac Finder, it's Command-O. Yes, I get the fact that it's mnemonic with the others in that list, but it's completely contrary to the customary and rapidly learned behaviour of navigating using the arrow keys and Enter ---which is located very close to the arrow keys, and requires only one hand to operate easily.
Aside from the fact that other users exposed the CMD+arrow shortcuts, Finder's shortcuts are also consistent with the rest of macOS, where "enter" typically renames the selection (try it with a folder in Notes, for example).
Aside from the fact that other users exposed the CMD+arrow shortcuts, Finder's shortcuts are also consistent with the rest of macOS, where "enter" typically renames the selection (try it with a folder in Notes, for example).