Your coffee shop sounds like eBay. I first joined eBay because it was a great place to buy firearms. I bought dozens there. Each had to be shipped to an FFL dealer, appropriate paperwork performed, and my license checked before I picked up any of them. Not one single time did anyone ever offer to send a firearm directly to me. Now, with their wisdom, eBay has long since banned the sale of firearms on their site. However, you can buy thousands of items that are far more dangerous and designed only to kill still. And, better yet, eBay has come up with a "private auction, pre-approved bidders only" type of auction that is a haven for criminals and scammers. In somewhat heated debates with eBay staff, they admitted that they are totally aware that well over 95% of all those auctions are scam attempts yet they do nothing about it.
Maybe I'm missing something here, but they opted to ban a perfectly legal, and extremely closely monitored, type of sale but openly create an avenue for criminal activity to flourish on their site. What am I missing here? I say that because I'm sure that you can still engauge in thousands of very illegal things on the coffee shop's free wireless internet access, yet they opt to block something that is totally legal and strictly regulated. Doesn't this sound odd to anyone else? And, I'm not buying any crap about it just being impossible to stop all illegal activities on their access. Of course it would be impossible. But, to block a perfectly legal activity and not even pursue blocking blatently illegal scams like are so common on eBay...?