I was diagnosed in 1989, and yep I prescribed my carbs, which was 13 (130g) exchanges a day, which can't be consider a promotion of high carbs, when at the time I was in my 20's had a 4 years, and just found out my 2nd was on his way...
It was a dietician that sorted out my carb/exchange allowance, first she did suggest 180g's a day but I just couldn't eat that much food, so it was reduced to a more comfortable amount for my appetite then my consultant tinkered with my insulin... Mind you saying that I must admit having to eat 13 exchanges every day I did find a struggle..