University says women should be advised of their Breast Density!!

Whenever I see the adverts from breastscreen Aust I get my pen out and change the 50 to 40, I'm in WA so we are informed about dense breasts but they still don't let women younger than 50 know they are eligible for free screening. 
Having said that I was living in country NSW when I was first diagnosed,  my original tumour was 7cm so I wonder if my earlier screening would have found it if I'd been offered an ultrasound. I guess I'll never know, its too late now anyway I'm stage 4, that horse has definitely bolted.