Consultant feedback: no plans to treat my husband's bladder cancer because he has Alzheimer's and is over 70. Has this happened to anyone else?

Has anyone else had the experience of basically because my husband has Alzheimer’s and is over 70 then the hospital has no plans at all to treat his bladder cancer.  Not medically why or even what we should expect in symptoms from now, but just that we don’t need any further appointments? I fully understand that the bladder removal is not an option due to it being a costly, major operation. But why nothing?