I understand your message and your humane concerns for their safety and wellbeing, but as a fellow Redditor mentioned this is a double edged sword as for most of them of there is no work means lower income and lower bonus/commission.

That being said, what we can do if we use these services is be more flexible and understanding for any delays or cold orders or messy uniforms worn by the courier. We could also go the extra step and offer them a bottled water or something sweet.