airplane makes a lot of people feel anxious.
other times, it needs a plan, such as making a list of all the different things you can do if you find yourself with no one to play with at recess, what to do when you walk into a room of people you don’t know, or when you need to get a shot at your doctor’s visit. the plan might include preparing, like doing a practice run or talking ahead of time about what will happen that day at school/camp/the doctor’s office/the birthday party. it might even require contingency plans, including what to do if x, y, and z might happen (even if 