If anyone is paying attention, Trump's McDonalds stunt  is going to backfire. His stunt shows that he has no empathy for and can not relate to normal people. He completely missed what working at McDonalds to put yourself through college means. Showing up to a closed store for a photo op is not the same thing as working a fast-paced job for hours at a time on an ongoing basis, for little pay while possibly struggling to make ends meet.  
It's a fast-paced second job that you have to do in addition to to your job of being a college student. It brings extra exhaustion and stress, usually at low pay, that makes succeeding in college even more difficult.   
Its missing out on some of the social life, study time, and extra curricular college activities.   
It's a schedule that involves many hours over several days every week, often for years.  It can mean putting up with toxic managers, having to take hours that conflict with other priorities and probably other things I'm missing.