There is nothing wrong with it. I bet most of the people who are saying those things also experimented when they were younger. The difference is that these teens are asking questions before they try it out. With the internet being such a prominent tool in teen's lives, it gives them the opportunity to ask. They're just curious, and even if their questions seem silly, they're only asking because they simply don't know. I think it's great that they do, because they don't teach kids enough sex-ed in schools. And they're going to do it no matter what.