Their jobs also are super stressful and burn people out.
These things are not contradictory.
Anecdotally, in support of the comment you are replying to, Starbucks poached our babysitter. $25/hour is the market rate for babysitters around here, and $100-$150 a night isn't anywhere near enough to screw with her sleep schedule. She works $18/hr morning shifts and now owns a car.