I graduated from Dalhousie University in 1978 well before I turned 23 and was in practice by the time I was 23. Also, before Newfoundland changed its final year of high school from Grade 11 to Grade 12, I heard that Memorial University produced a fair number of graduates at the same tender age, and I even heard of one who squeaked through at age 21. I don't think we need to turn to Scotland1 to find our youngest practitioners!