

Mostly not finding the entire stack of towels either soaked through with water, toppled over into the sink, or scattered all over the floor the next time someone uses the bathroom.
And, you know, not making our business look completely janky and unprofessional since clients can also use this restroom.
This is basically ubiquitous on many public lands, specifically here in the US. The term is “carry in, carry out.” Bins accumulate trash (obviously) which in turn is an attractant for rodents, bears, raccoons, etc. which causes its own problems. Wild animals should not be artificially fed by human trash. Trash can also be blown out of cans, or scattered by animals. Overall, especially for low traffic environments, the best plan is to have people take all their trash out with them.
TL;DR: Pack out your trash.