16 and pregnant.....what about 18 and in college?

I know almost everyone has watched at least one episode of the MTV series 16 & pregnant. I may be the only person that doesn't understand the point of the show. Is it to expose teenage girls and their hardships during pregnancy and during parenting? Or has it become a show to help them make money and make them a "reality show star"? Season after season, they have new teenage girls on the show that are pregnant and deciding whether or not to be responsible for their actions or to continue living the life they used to have. The show's purpose has fallen from informative to pure entertainment for the audience. I don't understand why these girls are getting famous and paid for being pregnant and young, when there are girls that are attending college and trying to make something of themselves. Why don't we have a show called 18 and in college? Is it because it wouldn't be as entertaining as seeing "baby mamas" and "baby daddies" fighting? I think we educated girls should get way more credit for making it this far.