People carry powdered supplements. Most are optional, some are required. Some are hygroscopic and the original container becomes problematic in humid climates--measuring out daily amounts is essential.
People on the road often have one-load baggies of laundry detergent. Yes, pods exist--but if you're in a humid climate and don't have airtight storage you have a problem. Pods are hygroscopic and will fail if not adequately protected. (Think about it--the pod goes somewhere when you toss it in the wash. Where it goes is it dissolves in the water.)
Also poor people exist, and sometimes they gotta make do with what they've got, even when it might be something that looks sus, that a middle class person wouldn't ever do.
And those people are often the same people to be targeted by police for drugs.
People on the road often have one-load baggies of laundry detergent. Yes, pods exist--but if you're in a humid climate and don't have airtight storage you have a problem. Pods are hygroscopic and will fail if not adequately protected. (Think about it--the pod goes somewhere when you toss it in the wash. Where it goes is it dissolves in the water.)