Damn wow...you tip pizza delivery 5, but no tip at all for barber? That's kinda weird in my opinion. Tip your barber 7 on 15 and see how much nicer and cleaner your haircut is next time around. If you tip heavier than that, you'll probably end up skipping people who are waiting in front of you.
I live in Houston, $15 for a haircut is already generous when most barbers charge $10.
It's my homie who cuts my hair, it's not gonna get better because of a few bucks, he would cut it for free, but I value any mans time.
Hell, He makes more than me, he don't need a tip. He makes $30-$45 an hour, no taxes. So let's say he gets 2 haircuts an hour for 8 hours. That's 240 a day, and he pays the owner $25 a day to rent the chair. He just cashed out on $215 in one day. Tax free.
I don't wait, I make an appointment, and make sure I'm there on time.
Meanwhile the pizza delivery guy is making $7.50 an hour.
Although I do see your point (which makes sense) Tipping my barber is pretty important for me.
I tip him good... in return, he makes sure he takes his time and gives me a fresh cut and also I don't have to make appointments or wait.