I only go once every 9 months and my daughter goes once every 9-12 months and we go only for trims. Bad experiences will make visits to the salon feel like a waste of your time. Many of you who are offended maybe haven't experienced the appt that felt like a workday. That is a waste of time. I have experienced this with almost every stylist I have been to, with the exception of a few. I too didn't think I had a choice as this was my experience ever since I was about 10. I didn't know there was a such thing as a stylist not taking 7-8 hours to do your hair and purposely overbooking until I was well into my 30s. My stylist now is respectful enough of my time and I usually book the last appt to make sure I am not competing with other patrons.
However, they are educated on common skin and scalp disorders. They are made aware of them so in your client profile they can note it. They can suggest you see a dermatologist. 
