[vilhelm_s]

So what _is_ the reason? I have always assumed that this is an example of regulatory capture: existing barbers gain from raising the barrier of entry for competitors, while non-barbers don't care enough about it to lobby.

[andrewvc]

The reason is that barbers have sharp things and deal with many people. Also lice. There's a very real public health risk if done incorrectly.

[jusben1369]

Proving that there are reasons for some certification is not really an answer though. I think the question is "Does it really take 2 years to get a solid grasp on those things?" (I've noticed several answers with a similar answer not just yours)

[Retra]

There are of rules for proper sanitation and safety, as well as continuing education requirements that are enforced through licensing.

[pkaye]

And some of it is regulatory capture... restrict how easy it is for others to enter the market.

[AjithAntony]

2000hrs of barber training