2 years ago, when I was looking for a job, at some companies they told me: we like you and your qualities, BUT you look too young. For this function we want someone who, at least, gives the impression of being very experienced, and our customers will assume, when they get someone in front of them that look syoung, that that person will not know what he's talking about.
So I went to the hairdresser and said: do whatever you want with my hair, as long as it makes me look at least 10 years older!
It didn't really help...