Everybody wants a tip these days
This is an issue now.
When traveling, I really notice this. The people who work the go-carts in pigeon forge had tip jars. Tour guides have signs asking for tips.
Every business with a counter has a tip jar.
Now musicians in clubs, I get that tip jar. But most of the time I am put off by tip jars. Though if it is a place I frequent, I tip. It pays to.
People remember you. My local vietnamese restaurant calls me when specials go up, as I eat there once a week. Even get freebies. A little tip and conversation at the counter never hurts.