One of the requirements to work at my LQS is that you 1. know how to sew. 2. have a basic knowledge of quilting.
You don't need to be an expert just basic knowledge. There are enough people in the store who know the machines (which every one learns stuff about and how to use). The owner of the shop concentrates on the Blinds end of the business. They offer a variety of classes, and I've never been disapointed. At the Joanns I use to work at, they can't keep a quilting teacher to save their lives, they don't pay well and people just don't sign up