Most of the groups I have seen are the "in it for life" category, if the members practice that is another story. As far as disassociating from a fraternity that is NIC there's a 5 year rule. I don't remember the exact phrasing but if you notify your national of disassociating, you can join another group after 5 years. The point being no one can force loyalty but we can make it practically impossible to make any switch. That being said, even if this guy stayed in college for at least another 5 years, it'd be pretty interesting to see them try and explain that he'd been in college for at least 6 years and wants to join a different org since he didn't care about the previous one. Sometimes, what seems like the easy way out is actually the hardest.
This post is only redundant to 15 of the past 20 or something posts, right?