I have couple questions on why teachers do certain things. Especially on new students: 1) why you have to tell your opinions on the origins fo salsa, bachata etc? I have seen teachers giving their opinions at beginning of the first class. Always sounding very confident on their statement even though the information we know is not certain. Some say is from the USA, some say is from Cuba, etc. Why is timportant to transfer your origin beleives? For intance a teacher said the other day that bachata motion comes from an slave dancing while having a metal chain in one the legs. 2) why teach stuff that students likely will never use? Some steps also seem complex. Some frienda in classes have quit because of it. I have told them : "dont worry, you will never see that in the dance floor" 3) why teach mid to complex combos when students still dont know most of the basic turns?