The 32 year old, known for him simplicity cited a number of psychological advantages to never changing his look.In 2014 he said:
“I really want to clear my life to make it so that I have to make as few decisions as possible about anything except how to best serve this community,”
“I’m in this really lucky position, where I get to wake up every day and help serve more than a billion people. And I feel like I’m not doing my job if I spend any of my energy on things that are silly or frivolous about my life.”
The choice of gray and blue stems from his colour blindness, which explains why Facebook has a blue thematic colour.
