I think ragging (or hazing) is not really an accepted part of life anymore. That might have been fine decades ago, but the cost is too great and it's not really acceptable anymore. I don't think it's an important part of college life now.
When I went to college ragging the fresh-mans was an anticipated part of the school year. The activities involved at that time weren't severe and those who participated willingly were readily accepted by the seniors while those who resisted were considered to be antisocial. After a while though we all got along, whether we participated in that event or not.
This doesn't always work so well for all tertiary institutions though.
I've actually never heard the term ragging before. It was never part of our lingo when I was at uni and my daughter (who's currently studying) has never mentioned it. Is it more of an American thing? I think the uni / college experience is a bit different in the US to Australia as most young people over there (from what I've heard) leave home to study. Here in Australia, the university experience isn't so all-encompassing for young people and many study without getting into that whole insular social world.
I don't know what 'ragging' is, but if it has anything to do with the way the woman in the picture looks, then I am very glad I don't. And, since I have been to and graduated from uni without knowing, it mustn't be important.