That was probably before they were really in style e.g. C# didn't add foreach / iterators until ~2005 with v2.0 and your curriculum probably lags a bit behind t

That was probably before they were really in style e.g. C# didn't add foreach / iterators until ~2005 with v2.0 and your curriculum probably lags a bit behind the industry state-of-the-art unless it was Ivy league