That's a 33% tip. I'd say that's sufficient. I struggle with tipping outside of a restaurant environment. I would like to think that the price that they charge is sufficient for them to cover the cost to provide the service. The cobbler that I use is significantly cheaper than I feel it should be so I pay him what I feel the service is worth, well what I would pay elsewhere. It pays off because I get my back quicker as a result. The bottom line is if you feel that the $15 hair cut is worth $20 then pay $20; if you feel that the $15 haircut is worth $10 then you need to go somewhere else.I went to an actual local barber shop for a haircut on my lunch break. It's legit, I won't be going anywhere else any longer. I've tried to go 3 times now but every time it has been closed. Worth the wait though.
The question of tips came up. The haircut was $15 and I gave him a $20. Is that enough for a barber? I honestly have no clue.