

Yes, they are. But that does not make it better that there is no bin. I have been in a situation with no bin but trash that can not simply be carried (disgusting liquid) and had to dump it. That is extremely rare for me, I usually pick up others trash. But there are situations where you simply need a bin, no matter how green you are.
You operate a cafe and sell stuff that is trash 5 minutes later? You print a trash bin.