Why do people feel it's any of their business when a teenager is pregnant?

Well if they come on here and say "OMG...I'm pregnant and I don't know what to do" or "I'm pregnant and I'm proud of it" it's like you obviously are not mature enough to have a baby and your stupid. But just seeing a pregnant girl on the street that is not shouting it off of rooftops or is in the store excitingly buying her baby clothes and toys then no I don't think bad of them. I actually really respect them for having the baby whether they keep it or give it up for adoption. You are right though, people are very judgemental and that was very rude of that lady who did that to your friend, and she def. got what was coming to her...lol.