Oh yeah. You can learn all about life... Working at McDonald's.
I fear that some of you have a slightly idealised understanding of the realities of working on the bottom rungs of these large companies. You are an ant amount thousands, the chance of progression is slim and more often than not, down to luck (being in the right place at the right time when a position opens up). Or of course, your ability to be female and willing to suck a fat greasy dick in for a £1 an hour promotion.
Because the lower level management positions in these companies don't pay much over minimum wage either.
Working full time somewhere like that is a miserable job and a miserable existence. A couple of days a week for a bit of pocket money, fine, but a full time "career"? No. It's dead end rat slog.