Just to add a voice of sanity to those trying to show some judgement here - the fact you are seriously asking this question means you are looking at the wrong job. In my company you are specifically forbidden from wearing such adornments. This is not, as some ill-informed individuals are saying here, due to conservative recruiters of a past generation who do know know how 'real' people live. It is because airlines know that appearance does matter. Passengers looking through flight deck doors do not want to see people with bangles/earrings/tatoos etc. The want to see conservative-looking people, with conservative judgement and a huge dose of common sense - that is why pilots wear white shirts with black ties. The wearing of earrings by a bloke speaks of the complete absence of those qualities. If you are offended by that, so be it - but that is the way it is. Becoming an airline pilot is an incredibly competitive business with many applicants for each job. You want to put yourself at the top of the list and wearing earrings guarantees you go to the bottom without a word being spoken. If you want to be on X-Factor get a fancy set of earrings, but if you want to be a professional pilot, lose them - dead simple.