Don't get mad about this topic! Just asking a Q

Why does it seem like every teenager or female younger than 20 gets bashed for being pregnant by older woman? I see older woman say "wow you're having sex that young? You shouldn't even be dating yet" like it's their life. Why do you seem jealous of them because they're pregnant and you're not? Like are you mad that they can get pregnant that easy or without trying ? Don't be so harsh and rude. They tell you to go to an adult for advice but when they do they gets bashed and people always have something to say