Things have improved getting in and out of Disney with the new Disney Ticket Tag System. As you go inside, Disney cast members watch you and uses finger geometry to remember you and your ticket number together. This is so they don't take the entire traditional fingerprint. Yes, the camera takes detailed pictures of several key points on your finger. This improvement process has done tons to reduce line length getting into the theme parks.
Similar to go into the airport, it is easier if you can go to the theme parks without carrying anything special. Just bring your credit card, Google phone, and a big smile!