Obama is the first president in my lifetime that I can say I truly admired and loved. There have been disappointments, but sometimes even on those I've seen brilliance. Possibly even in the Syria crisis, which I had strong misgivings about - we have no soldiers on the ground there, no missiles fired, and Assad backed down and agreed to give up his chemical weapons. In a situation I thought could only turn out very bad, now this looks like an incremental improvement instead.
As for his appearance? He could look a lot of ways, it would not bother me. He's a middle aged man, whose hair is graying and who is probably happy not to be wasting his time on grooming his hair. No stopping of flights on a runway for an expensive and silly haircut session. Seems like a sign of maturity and good judgement. He also sets an example of discipline to the armed forces, as the commander in chief.
I've had a buzz cut for 25 years. When I cut it, it is always a relief and feels good. The start of the day is easier.
I get my hair cut very short in the past few years, too. I let it grow out until it starts looking bad, then go back and get almost all of it taken off again.
I envy the freedom guys have to shave their heads. If I did that, people would be asking me if I had cancer and generally treating me weirdly. I don't know if I could get by with a buzz cut :)
He's a middle aged man, whose hair is graying and who is probably happy not to be wasting his time on grooming his hair.
There is probably also a racial aspect. There's a great deal of image management that is crucial for as public a person as the president (obviously!) Obama got elected partly because both black and white people could see themselves in him.
I look at people's facial expressions more than their hair, myself. Probably most people do.
Yes, Obama seems extremely capable. And very good at keeping his balance.