Dd doesn't really waited much in lines at the airport. DH has pre check, he takes her with him (I go through regular security). She qualifies for medical pre board, so we don't wait in the line to board. Even with that, the traveling itself still can be very stressful for us - but it's worth it to see the joy she has when she's at Disney. We do what we can to minimize the things that will cause the most issues - just like we do at Disney by using the DAS.
The alternative would be never leaving home because it's stressful to go places - and that's just not something I'm going to do to her.