Why am I surprised?

Jasmine
My stepsister is in middle school, in vegas it's 6-8 grade. She's in 6th, and she serves lunch to the 6th graders and eats with the 7th graders because of cafe training. She overheard a group of girls talking. One girl said she and her boyfriend are having sex and that she hopes she get pregnant. 7th grade your 12-13? I was shocked but I know I shouldn't be because some 6th graders do drugs and have sex. I told my stepsister not to follow that girl's steps cuz she'll struggle as a 12-13 yr old mom. She can't focus on the fun 8th grade or Senior activities. I slapped my stepsister's stomach and said that's what it feels like when a baby kicks(probably not) I just wanted to scare her. Lol.