I mention those 2 instances as they seem to be the most prominent in the popular culture I'm exposed to, but I would assume it's happened in plenty of other times and places.
So if you were an eligible candidate in (insert war/country of choice), how likely were you to be drafted?
I checked the FAQ and didn't see anything similar based on some keyword searches of the page.
Italian here.
Almost anybody born in or before 1923 (except for categories such as factory and mine workers) would have been drafted at some point in the war; and this wall made all even more easier by the simple fact that conscription in Italy had been mandatory for a almost a hundred years already, so the regime knew who to pick already.
However, not every draftee saw action or was sent to the front: many served in units such as the MILMART (Coastal Defence), the UNPA (Air Defence) or the MVSN - the infamous "Blackshirts". But by the time the war had broken out, these had become another branch of the Army and the organisation itself also dealed with many aspects of civilian life such as auxiliary police tasks (border control, coordination of emergency services and whatnot).
Or, you could have just been assigned to one of the many naval/air bases scattered throughout the country.
About 160,000 Canadians were conscripted under the NRMA in WW2. This is out of a total population of around 12,000,000, so between 5%-10% of military age males were conscripted. Of these men, around 20% then volunteered for service in the Active forces. Most of them would have seen active service. A further 10,000 were sent to the front after the recruiting difficulties in 1944 and 1945. Of these, 2463 saw action and 314 casualties were suffered, including 69 dead.
I want to say drafted and conscripted are slightly different.
In WWII, I think the Nazis would conscript enemy soldiers into the SS.
Edit: my college advisor was drafted for the Vietnam War. He had a professional degree though, so he stayed stateside o train long distance marksmanship.