Colo-mentality And Lawyers White Wig!

The UK is in Europe, Nigeria is in Africa, idiot, two different cultures. Colonisation is supposedly over, but people are still wearing blonde wigs in baking Africa. They look stupid, whether colonial or not, end of.

The nurses wearing 'those hats' and the 'the white jackets for doctors' serves a function, relevant to the duties they perform. That uniform is theoretically part of their hygiene protocols to protect themselves and the patient from germs.

What i don't quite understand is the function the wigs serve and it's relevance to our legal justice system? If their only function is 'cosmetic', which it seems to my uninformed perspective, then this topic is very relevant. If it's more than to look the part, then can somebody who is 'informed' kindly enlighten those of us who are not 'learned' enough, what it's all about?