All I know is working in fast-food was the most stressful job I've ever had. More so, because you never really get rewarded for it.
Doing in-person, online orders and drive thru orders has to be extremely stressful. I'm all for the workers making livable wages, even though it will increase item prices.
Though the work I do now provides me more money, I do realize these fast-food workers still play a worthy role in our economy since we all do visit these spots at one point or another.