I’m not sure your conclusion is correct. People in those types of roles can start and finish when they need to in the main because their roles aren’t dependent on the wider timetable of the day, whereas people who work in schools, offices, catering etc have to work much more in relation to those around them and who they come into contact with, as their roles are much more interactive with others. They cannot work in purdah, whereas those that work outside generally can. I understand for agricultural workers (for example) there may be such things as childcare issues, but that applies to any worker in theory, but ultimately people who work outside can work around the available hours of daylight irrespective of what human construct is imposed upon that period.
As others have said, would prefer another hour at the end of daylight, and lose an hour in the morning.
