Hi J
Welcome to the site,if I was you I would put your post in general,as people do not look at carers very often,I post here as I am a carer and at the moment my news is not good and I am aware,some people do not want to hear bad news!!
Now to you J,it’s going to be a hard roller coaster ride no matter what your Dad decides,you will not get any one trying to change his mind,they will tell him the facts,but if they say once they have his symptoms under control the future looks good,then that’s what I would impress on him.it sounds if they are not writing him off,so that a good,I have sen many patients in there eighties having treatment,plus there was one man who was 90,he did not look it and was very trendy,it’s more attitude than age I think.
If he decides not to have treatment,you have to respect that,it is not a decision he has taken lightly,for someone to choose to die earlier than he would do takes a lot of courage,others have chosen to do the same. You do not say if your mum is alive,that is the person who would have the most influence!!!
I hope no matter what your Dad decides that you learn all you can and be there for your Dad.Eve