Do you need to go cosmetology school wash blow dry flat iron or set hair?

No, you do not need to go to cosmetology school to wash, blow dry, flat iron, or set your own hair. These are skills that many people learn through practice, tutorials (online videos are abundant!), and experimentation. Cosmetology school teaches you these skills *professionally* and to a much higher standard, covering safety, sanitation, and a wider range of techniques and styles. But you can absolutely learn to do these things yourself at home.