True, but opinions shift over time.
as far as cutting hair properly, sure, with trimmers around anyone can clip on an attachment and give himself a buzz cut.
one thing for sure, one can defintely give himself a good shave, yet barbershops have been providing shaving services for ages, sadly now its a little hard to find, but guyus could shave at home without a problem, so why go to the barber for a shave?