Why do judges wear those weird white wigs?

They don't wear them anymore. But when it was popular, it was also popular for the general public to wear powdered wigs. It's a stereotype from a long time ago.

Judges' wigs are, in everyday use as court dress, short like barristers' wigs (although in a slightly different style) but for ceremonial occasions judges and also senior barristers (QCs) wear full-bottomed wigs. The wearing of wigs as a symbol of social status was largely abandoned in the newly created United States and France by the start of the 19th century, although it persisted a little longer in the United Kingdom. In Britain and most Commonwealth nations, special wigs are also worn by barristers, judges, and certain parliamentary and municipal or civic officials as a symbol of the office. The original purpose of the legal wig was said to provide a form of anonymity and safety (i.e. disguise). Today, Hong Kong barristers and judges continue to wear wigs as part of court dress as an influence from their former jurisdiction of the Commonwealth of Nations. In July 2007, judges in New South Wales, Australia voted to discontinue to wearing of wigs in the NSW Court of Appeal. New Zealand lawyers and judges have ceased to wear wigs except for special ceremonial occasions such as openings of Parliament or the calling of newly qualified barristers to the bar.

To cover up their weird white heads! The wigs worn by judges started out as essential fashionable attire for polite society. Although they went out of fashion for the general public in the 17th century, judges continued to wear them into the 19th century. It's about time they died them pink or something a bit more fashionable then! Now they're only worn by the legal professions, but they've changed quite a bit. The traditional, full-bottomed wig is now only worn by judges on ceremonial occasions, and a much shorter style has been adopted for normal court sittings. So now you know! =D

Isn't it something to do with showing levels of authority in courts/classes people moved in ie poor middle class higher class? Or am I wrong