One needs to be remember that these same fears were around in the early days of researching adult recollections of childhood sexual abuse -- in part forming a special issue of American Psychologist -- back in the wicked old days of "recovered memories" with the consensus being that such research, if done carefully, not only could be done, but it was important that it should be done. No one is saying people are obliged to answer the questions, but all the research sfaik has shown that people don't mind answering the questions -- the original ACEs research was not done as part of ongoing therapeutic relationships after all.