Maybe it's lonely to them because they are used to having friends around. Maybe they are used to having their family around and they love their family. Many people enjoy their family's company.
Also, if they are away at college living in a dorm they can't have pets. Even if they have always been loners and never had much interaction with their family and had a lot of pets for company at home, they couldn't have them while away at school, so they would be lonely too.
Someone else said that those were mainly Freshmen, so they probably haven't been there long enough to make friends yet. Also, the work load is probably heavy, so they don't have time to be with what friends they do make, or call their families.
The emphasis on socializing is I suppose the need for human contact. Even people on WP obviously have it, because otherwise none of us would be posting in a forum with other people. It's online yes, but it's still human contact. Some people prefer to be out and about with friends all the time, others prefer sometimes, still others prefer to communicate online with others when they desire contact. The only people that really desire no human contact of any sort are probably hermit types, even some who go to jobs and have to deal with people, because during their free time they do not seek out any interaction of any sort with any other human being, whether that be writing a snail mail letter to their mother, or posting on a forum, or going to a chatroom, or answering personal email or getting on Facebook, or calling someone on the phone for any reason other than is absolutely needed.
I think there are many people who very much dislike face to face or voice to voice human contact but enjoy contact via forums, emails, and MMRPG's.
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I'm giving it another shot. We will see.
My forum is still there and everyone is welcome to come join as well. There is a private women only subforum there if anyone is interested. Also, there is no CAPTCHA.
![Wink ;-)](./images/smilies/icon_wink.gif)
The link to the forum is
http://www.rightplanet.proboards.com