licenses?, licenses?, beauty licenses?
got shear, a comb and a brush, your a licensed beautician or a barber!
gotta hammer and saw, your a licensed carpenter!
gotta a volt meter, wire cutters and a roll of tape, your an electrician!
know how to turn on a gas stove, place a pot fill it with water and rice, you guessed, your a cook!
get the idea.
There may be a beautician or a barber association, that I do not know.
beautician school might be, never seen one or heard of one, but never actively was looking.
but license, nope, not yet, not in the near future either.
g'luck