This is the studio that you want to go to - one that makes sure that no just anyone (read: the clueless, the wierd, and the 'I am intermediate even tho I've never done this' folks) gets in ad disrupts a learning process.

If someone walked in on you in the middle of a 5 week course, and the teacher was forced to 'dumb down' the class just to accomodate the new participant, you'd resnt it and question the veracity of the class.

Hey, they don't let you into adult ed classes after the course starts - wny not a dance class?