There is nothing to study. Circumcision is bodily mutilation. Perpetuated by primitive people.
I don't know if you know but in Australia and New Zealand.
10 to 20% of men are circumcised.
And this is not because there are 10 to 20% of jew .... those religions are almost nonexistent.
I wouldn't call new zealander or australian primitive
And according to the same source, up to 60% of the american men are also circumcised.
I wouldn't call american primitive people
The frequency of circumcision varies from country to country. In New Zealand and Australia the rate is approximately 10-20% of boys but as mentioned above there are significant cultural differences. Rates of circumcision, for comparison, are much higher in the USA - up to 60% -, 6% in the UK and in Europe the rate is lower at less than 2% in some countries.
source :
http://www.citymed.co.nz/minor-surgeries/circumcisionAnd how many of them had a say in the matter? None.
People who self mutilate, or mutilate their children are primitive simpletons.