Farewell, Charlie Gard

State to his parents: How dare you look for a second opinion.

Charlie Gard has come to the end of the line. On Monday his parents announced they are giving up their appeal to have him undergo experimental treatment in the U.S. for his genetic disorder. Their decision came after the doctor who’d offered it said too much time had elapsed and too much damage had been done.

People can disagree with the best treatment for Charlie: The British doctors certainly disagreed with the American specialist the family invited. In a statement defending the British actions that delayed the treatment...