Well, I started with the fact that he said he isn't social and made few connections, while his sociable friend made many connections. From there, it wasn't hard to conclude that "college" had little to do with generating connections.
>but you can't just meet the diverse number of people that its possible to in university
Completely untrue.
First of all, you know where you can find diversity? Almost anywhere. Join a club or a team sport and you're likely to encounter people of all shapes, colours, ages and occupations.
Second, the University isn't as diverse as you proclaim. The average person you will meet in college in America or the Commonwealth will be globally wealthy, speak English and probably be a WASP, somewhere between ages 18 and 24. You surround yourself with like-minded people in your courses, many of whom will not graduate, and even fewer who will go on to careers related to their education.
Don't get me wrong; I love the college experience, and am a firm believer in education. I've already spent more time there than is optimal for my career.
>College is the best time to make connections
And what do you base this argument on? I didn't have a clue who I was at 20.