A ski shop sales person can't see how you ski. You get to "describe" how you ski. For beginners, they all think they're experts after they straightlined their first black!I have to think this is a case that the ski sales person didn't do their job. It is why you should deal with a reputable shop.
Or, the reverse is true. A woman who takes lesson after lesson but are afraid to go beyond greens.
Or, if you live in the snowless flat land, how many "reputable shop" do you think he'll have nearby?
But the most important thing being, how do you know you got the "right" or "wrong" gear? It works, right?
Not until you try a few others ON MOUNTAIN that you realize what you have works better than the rest, or there's a better one, aka you got the "wrong" gear!