For me the appeal of drive through is 100% solely just that I get to listen to my own podcasts or music. I don’t carry headphones with me outside of the house so if I get to keep my podcasts going - that’s good enough reason for me.
i used to be a major headphone user but as i've gotten older, i really don't like to isolate myself like that when in public. i've started to enjoy just living in the moment a lot more than when i was younger, and i don't like to appear as antisocial as i often feel, because i actually feel a lot better about myself when i interact with the people around me instead of gliding through life trying to avoid notice.
This is not to say that every McDonald's employee is a joy to be around. But it is good for your brain to smile at a stranger face to face and make a little small talk every now and then. It is also a skill you have to practice or it becomes hard to do.