Can someone please explain hairdressers

Can someone please explain hairdressers to me. I mean, I don’t really understand why anyone would do the job. But if you are going to do the job, why is it so difficult to listen to what your client is asking for? I mean, if you went in and said “Hello, I’m trying to grow my hair a little longer, but it’s got a bit unruly in recent weeks, could you thin it out and cut it a bit but leave some length…” would you really expect your hair to be cut to within one quarter of an inch at the front? Me either. Sigh. Looking forward to another three month hair-growing experience. Followed by a shouting match with another evil hairdresser no doubt.