You can learn to ski with your skis in the snow surface or ski by barely scratching the surface?
Things to look for in this video of PMTS Skiing? Into this video, the first 5 seconds will demonstrate the difference between "The Two Ways to Ski". Notice the group of skiers flying by, (noisy skis) they are barely scratching the surface of the snow, granted it's hard snow some places even ice. Then compare that skiing, to the skiing in the rest of the video. 99% of skiers on the slopes ski like the group that flies by.
This is fine on a groomed slopes with no obstacles, bumps or deep snow, however at any big mountain this skiing will not hold up. Yes, the skiing of the two in the red suits will hold up everywhere, in powder, bumps and be enjoyable on any snow.