After my last post on dialect, Yin kindly directed me to her post about this very same issue. I come to the dialect/language question from a professional perspective; I have never personally been faced with this difficult and emotionally weighted question. So I share with you this post which I think demonstrates very well some aspects of the question from a personal perspective. Additionally, her musings about the upswing of the Shanghai dialect mirror my own beliefs about the relationship between power/economy and dialect.
Thanks Yin, for letting me share this with my readers.
on raising bilingual children 
you are very welcome!