Well, you can learn, but if you are middle aged, or the least impaired manually and/or visually, N Scale is tough. Generally, the better job will have been performed by the 16 year old women in China at the assembly lines. I'm dead serious.
However, as a perhaps unwelcome aside, and I may take some flack for this (and all my HO locomotives have sound):
The smaller scale items with sound don't sound so great. Some 're better'n others, to be sure, and a lot depends on the know-how and skill of the installer, but the small spaces in HO scale and on down means tinny sound. Tiny sound, too. Many can't stand it after a while because it is low-fi sound, and they run their more expensive locomotives in silence.
I say this because you may find yourself quite disappointed with the small, tinny sound that will issue from N scale enclosures. Sorry, it's just physics...