Charge what it costs and give the best service possible. All barber shops are different, but usually the person cutting your hair is renting space from the own

Charge what it costs and give the best service possible. All barber shops are different, but usually the person cutting your hair is renting space from the owner of the shop, who may set prices. You can use this knowledge to affect your willingness to tip (or not), just in case you're not tipping because of an assumption that may or may not be valid.