As other have pointed out, OP seems a little confused about different kinds of skiing. That's OK, even I don't get all the nuances.
The fixed point seems to be: backcountry. OK.
Now, there's cross-country (flat) and ski touring (sloped). Cross-country has a waaaay lower barrier to entry (skill, cost, equipment), at least in my neck of the woods.
Ski touring is basically hyper-specialized boots, bindings, skis, and detachable climbing skins you put under the skis, so you can walk ("skin") up a backcountry slope, then ski down in sweet, sweet powder. The equipment is easily over 1 grand, new, and then you need the skills to ride downhill, off-piste. Nothing you acquire overnight. Did I mention avalanches are an ever-present danger, and you'll die if they bury you? So you need route finding and avalanche skills as well.
Cross country, on the other hand, is much more accessible. Wide range of equipment, less technical demands. You just slide back and forth on flat snow, and move forward. Even kids can do it. No avalanche risk. Faster than snowshoeing.
However, everyone I've seen who does cross country do it as a form of aerobic exercise, wearing tight spandex and taking their ski wax choice waaay too seriously. But I'm sure there's a middle ground somewhere.