Just because it's normal for shops to open early doesn't mean that people who work those jobs are less negatively impacted by alarms and sleep quality. I’m not

Just because it's normal for shops to open early doesn't mean that people who work those jobs are less negatively impacted by alarms and sleep quality. I’m not at all implying that they aren’t. However, because shops are open for fixed hours, it’s at least sort-of understandable that employers believe they can get more benefit from people working scheduled hours (which aren’t necessarily “first thing in the morning” — see sibling comment). Regardless, “people are tired and miserable doing job X” seems like poor justification for making sure that people doing job Y are tired too.