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Re:What a 4am haircut taught me about hackathons by andrewvc on Tuesday June 30, 2015 @01:42PM (#9807063)
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.
Re:What a 4am haircut taught me about hackathons by jusben1369 on Tuesday June 30, 2015 @02:26PM (#9807410)
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)