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This is not a discussion start point, that's a question.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
The last year we have had an explosion of self-service checkout counters here in Norway. The only place where you see a line is in the manual counters, because most self-service lanes require you to pay by plastic. Even in those (few) self-service lanes where you can pay by cash, they require some proof-of-age if you want to buy beer. So for those of us who don't want our grocery (or beer) preferences to be tracked, so we don't want to pay by plastic, we'll have to accept waiting in line for the manual counters.
I actually got good enough at haggling that I was offered a job in an Arab shop in Jerusalem's Old City by a shop keeper. It's a lot of words and body language and knowing what something's worth (to you) - and often fun.
In a weird way, it's a better way to buy and sell: both buyer and seller were content with the prices if the deal goes through. How often do you buy (online/brick'n'mortor) and feel like you overpaid?