Glad to hear your son is doing fine now. I understand how this made you feel. I think especially the downs in life helped me to from a good perspective on life.
The people who said you are brave put themselves in your position and are not sure if they could deal with it the way you did. It shows a bit their own worries of how they would deal with such a situation and people just want to be nice and probably don’t know what else to say, so they say you are brave.
Alea iacta est ("The die has been cast")