The reason it needs to rest is because the juices need time to redistribute, otherwise it will just flow away, leaving you with a brown, overcooked piece of meat. Another important thing to know is the residual heat will continue to cook your steak after you've removed it from the grill or the pan.
D it takes time to develop to them
1) Whether it is a real emergency or it a threat to you and or the public.
2) They have a job to do and it help out a community of people so they are risking more people
3) Most likely the people who need it like handicapped, special needs, addicts, etc.
4) It would depend on your surroundings and state of mind. Because it can last if you don't make an improvement to change something
5) How sever the illness is and or what they are dealing with
