I no longer follow them to school, if that's what you're asking. My Teens still do attend high school, though. As for Prom, it's not for lack of trying. (I believe I must have a mod or cc that's interfering. My Kids get the reminder, but even when I click yes, and choose which Sims to attend, nothing happens. So sad. I had their parents create a Prom in the gymnasium at Copperdale so that they could enjoy dancing with classmates.
ETA: I read somewhere on these forums that kids have a better chance at the graduation ceremony, if we just send them to school, rather than follow them there. That's the main reason I'm sending them by themselves. I'm just now wondering, too, if that could be causal as to why they can't get to Prom?