Behaviour during the Heatwave

Two adults I know are travelling to a bicycle show today , in an inner city, from their home in a country village. One is overweight and recovering fro a serious stroke early this year. The other will have to push her wheelchair. Both are about sixty years old.

My son said !The world does not stop because there is a heatwave". I'm not going to argue with him , but do I think people should change their habit according to the extreme weather event.