Cancer in Cardigans

I found out awhile back that Sadie's mom, Petal aka Cardiridge Wildflower had breast cancer. Considering she is 8 years old now, is this a normal age to be getting cancer in CWC? Is cancer normal in this breed? Is it genetic? Can it happen to bitches that aren't used for breeding aka my Sadie Princess??

Should Cardigans be getting screened for cancers? Do you see it as a big issue in the breed? Do you think we should be talking more about it and becoming more aware of it?

I'd love to hear what you have to say