My grandfather was a doctor during WWII, and his son (my father) was born during the war. At that time, soldiers in the trenches kept getting infections under their foreskins because they had no way to wash themselves regularly enough there. And since at that time, people really thought the war was never going to end, doctors decided to start circumcising newborn babies so that when they grew up and became soldiers (remember, there was the draft, so most people had a good chance of serving, especially if the war dragged on for years and years), they wouldn't have to deal with the issues of unwashed foreskins in trench conditions. So my father was circumcised.
But then the war ended, and my grandfather stopped advocating circumcision. He told my father that it was an unnecessary procedure (after all, WWII was meant to be the 'War to end all wars'), and not to do it to his kids.
So me and my brother are both uncircumcised and very happy about it
TLDR: War. Germs. Doctors. Peace. No snip. Yey!