Miss PVDProf is 4 and loves airplanes, but is a little skittish of things she does not fully understand. (I do not mean to imply your anxiety is childish, just relaying an experience that is necessarily more visceral and fear-like, because she has less life experience.) We just finished a trip with a connection, a 752 to a CR7. She reported the CR7 was nicer than the 752 because it was quieter and had a smoother ride.