Most Helpful Girl
In 5th grade, my class and I would play Maria Kart on the Nintendo DS.
Most of us began dating in 6th grade but of course it was nothing serious. Just little kid shit, passing notes and being cheesy. I'm in 8th grade now, I'm still young, not even in high school yet. I had my first "real" or French kiss with my boyfriend barely 3 days ago.
I believe you can start experimenting once your teen years begin but there is nothing wrong with not kissing anyone or dating anyone yet. Sometimes you have to wait for the right person.
Most Helpful Guy
I had my first girlfriend and kiss at age 11, year 7 for the British people, but I don't know what grade is that in America.
5th grade sounds too young, so I doubt that those kids say they've had sex, maybe they've jerked off and counted that, or maybe they just learned about sex and wanna be cool.