Is cash on the way out?

This morning, looking for a coffee, the first two places would not take cash so I went elsewhere.
Last week I went to a coffee shop at 1.50pm on a Friday. The person behind the counter informed me they close at 2pm. I went elsewhere. That place also does not accept cash. I told this to my friend's wife and she said there are many senior people who no longer go there because they do not take cash.
One place I went to would not serve me a coffee unless I bought a meal.
How can businesses complain when they do not take the money people want to part with?