And you would probably remove the other using (the first line of your code example) because you don't want two pieces of code disposing the same thing possibly at different times.
Old school programmers were working under much more constrained environments. The amount of things available to know was also a lot smaller. It's hard to compare programming from 25+ years ago to today.
Sure, I just stuck that in as pseudo-code, you don't necessarily need to make a method for that - although it usually is cleaner and easy to read if you make small methods and chain them together in your overall flow.