Caya, here's a national map for those of us in the USA, indicating where this issue stands in regard to each state as of this past January. I agree with you, even though it is just a start toward addressing the problem. Most women doing routine mammograms have no idea that density is an important issue.
http://www.diagnosticimaging.com/bre...nteractive-map
P.S. Please be sure to read the information listed below the map, as it also is relevant.