[jartelt]

I imagine it is just hard and annoying to try to enforce a time limit. You don't want your cashiers and baristas to have to keep track of how long each person has been sitting at a table. Plus, your cashiers may not be comfortable asking a homeless person to leave the establishment since it could lead to a confrontation.

On top of that, I could totally see a time limit rule being implemented poorly. The well-to-do looking businessman probably never gets asked to leave, while the young non-white person gets asked to leave...

I'm not saying cash-less is a good system, just saying the other policies have their issues as well.