PM: Even airlines have stopped accepting cash for in-flight beverages, earphones, etc., etc..
SW: I have flown with seven airlines in the past 12 months and all accepted cash for goods - from headphones and beer to duty free grog - on board.
PM: Have you flown Jet Blue ? Continental ? United ? American ?
They no longer accept cash. And, I suspect that other airlines will quickly follow suit.
I have flown Malaysia, easyJet, Ryanair, German Wings, Air Southwest, BMI and Egyptian Air. Virgin Blue, Qantas and JetStar at home all accept cash as well. As can be the case sometimes with all of us, I think you are assuming the situation in your country is repeated globally. It isn't.
SW: And as Chris says, outside the USA cash in golf clubs is still a reality. 30-odd courses in 7 countries this past 12 months and I am yet to be told I can't pay cash in the restaurant, half-way hut or bar.
PM: I can't speak to clubs outside of the U.S. but, in the U.S. I haven't come across a private club that allows members or guests to pay for dinnner and/or club services with cash. Where cash is involved, skimming thrives
If we are talking about the USA exclusively, I will humbly bow out of the discussion, but I don't believe we are, and in that case you need to accept that American clubs run very differently, and it seems in many cases with polar opposite priorities, to those in the UK, Australia and elsewhere.
Plenty of people like to pay with cash or debit card so they can control their spend. I reckon the richer you are the less you might worry about that, and knowing what many US clubs charge for entry and dues, I guess maybe it's just different demographics at work, operating the way that best suits those of varying means.