Because nearly every hairdresser or beauty therapist that I ever come across seems to earn really really well.
I go to a mid priced hair salon that also offers beauty services and the staff car park is full of Mercedes and range rovers with personalised number plates. The staff all seem to have expensive clothing and shoes (such as all wearing DM sandals in the summer which are £150 a pair), and the staff are always going on or just back from foreign holidays to expensive locations.
Is the industry super well paid?