Why are people who cut their hair looked down upon?

Looking at some beauty salons in today's society, most of them are young people who don't like learning, and their clothes are more prominent (professional needs), which leads adults to think that hairdressers are ignorant people, so they generalize.

In fact, I think haircut is a hard technology and has a good development prospect. With the development of economy and social progress, people's pursuit of beauty is getting higher and higher, and stylists and hairdressers are highly respected. As long as you master technology, earn money and sit upright, nothing will be looked down upon!

This is my idea, just as communication!