Owning a business is a lot of work. It`s hard to see how
owning/running a barber shop could be worth the trouble -
it`s like paying rent to work at a job. Barbers get paid
by the haircut, but more importantly for their time.
It`s hard to see how you could get very prosperous doing
barbering. I haven`t read the book "the Wealthy Barber"
but you definitely should read it. It tells how even a barber
with a modest income can live frugally and save enough
money to be comfortable in old age.