Yes, Dance bas should be allowed. first of all, dance bar is part of life in mumbai...and in order to experience mumbai, people should not left out dance bars too. Also, dance bar does provide boost to local economy and lowers unemployment problem for local girls. but keeping close eye on these business is neccassary, because girls should not be forced to work in this professon.
I think they(dance bar) should be allowed,as its living for many and when you ban it,it happens illegally and more and more people will go for it,so make it legal,let them do it.
There an old saying" Curiousity kills the cat",its like you say no to something, more and more people will be curious to do that,thats human nature so make life simple,let them do it.