$7 haircuts

Why are there $7 haircuts? Are they not as trained as the $40 haircuts?

Bald haircuts

How come when someone on TV has a bald haircut, everyone else on TV decides to do the same thing?

Almost bald haircuts

Why do many people get an almost bald haircut? Why not just shave it all off, do it yourself and save the money?

Haircuts all the time

Why do people get a haircut again when it looks like they just got one two weeks ago?