We got a new kid around 19 working at our office for processing data and I hate how true this is. The amount of times I've had to say "No, you have to double click to open folders" is entirely too many. Either that or "You have to actually right click on the icon you want to copy you can't just click anywhere on the screen."
You can absolutely configure Windows to open folders -- and all other shortcuts -- with a single click, and IIRC one of the knocks against Windows ME was that this was the default option. And it was godawful, along with the "click" noise it made on navigation. (I think it was WinME. I've probably suppressed the memory, and rightly so.)
But the long and short of it is if you want consistency between your UI's in that regard you can indeed have it.
I think I tried it years ago. But it didn't really work with the windows ui for some reason. Nowadays I don't use it often enough to bother personalising it.